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WARM UP. -12(k + 4) = 60 63 = 6.50p + 17.50 Solve for x. 3x + 6y = 12. LOL. Lesson Target. I can solve and write equations using inverse operations. Study Guide. Check answers. Practice Test. Question #1. 5X + 15 = 50. X = 7. Question #2. 8x – 2x + 3 = 15 What’s the 1 st step?.

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WARM UP

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Warm up

WARM UP

  • -12(k + 4) = 60

  • 63 = 6.50p + 17.50

  • Solve for x. 3x + 6y = 12


Warm up

LOL


Lesson target

Lesson Target

I can solve and write equations using inverse operations.


Study guide

Study Guide

Check answers.


Practice test

Practice Test


Question 1

Question #1

5X + 15 = 50

X = 7


Question 2

Question #2

8x – 2x + 3 = 15

What’s the 1st step?

Combine like terms on the left side.


Question 3

Question #3

8(3a + 6) = 9(2a – 4)

A = -14


Question 4

Question #4

Determine how many solutions the following equation has. If the equation has one solution, solve for the variable.

3(6 – 4x) = -2(6x – 9)

All real numbers


Question 5

Question #5

How many solution does the equation have? If there is only one, determine the value.

-g + 2(3 + g) = -4(g + 1)

G = -2


Question 6

Question #6

Find the value of x.

0.2(x + 50) – 6 = 0.4(3x + 20)

X = -4


Question 7

Question #7

Solve for following equation for y.

6x + 3y = 12

Y = -2x + 4


Question 8

Question #8

Solve the following equation for a.

=


Question 9

Question #9

What is the value of x if the perimeter is 28 cm?

X = 5


Question 10

Question #10

If the formula for m = 3abc, what is the formula for b?

b =


Question 11

Question #11

Write an equation and then determine the number described in the following statement: Four more than twice a number is four times a number less six.

2x + 4 = 4x – 6: x= 5


Question 12

Question #12

My refrigerator repairman charges $125 to make a house call and $25 for each hour worked. If you have $350, can you afford a repair that that takes 6 hours?

No, h = 5


Question 13

Question #13

The product of a number and three is equal to twice the number subtracted from forty-five.

3x = 45 – 2x; x = 5


Question 14

Question #14

Alan brought cupcakes for his Math class. He gave half of them to the boys and 7 cupcakes to the girls. He had 2 cupcakes left after class. How many cupcakes did he bring?

18 cupcakes


Question 15

Question #15

Gary and Fred are working on their study guide. Gary can solve 6 questions per minute and Fred can only solve 3 questions per minute. If they both start at the same time, how many minutes will it be before Gary solves 9 more questions than Fred?

3 minutes


Question 16

Question #16

Ruby says the following equation has infinitely many solutions but Joanna says there are no real solutions for the equation. Solve. Who’s right?

-10y + 18 = -3(5y – 7) + 5y

No solution. 18 ≠ 21


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