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Solving Linear Equations. Josefina Zarazua 8 th Grade Mathematics . Solve: 4x+13=21. X=2 X=4 X=3 None of these. Is 2 a solution for 2y+3y=12-y ?. Yes No. Solve for x the given equation: 8x-2(4-x)=14. X=3.66 X=2.2 X=1 X=2.34. Solve by clearing fractions ¾ x + ½ =2/3 .

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solving linear equations

Solving Linear Equations

Josefina Zarazua

8th Grade

Mathematics

solve 4x 13 21
Solve: 4x+13=21
  • X=2
  • X=4
  • X=3
  • None of these
solve by clearing fractions x 2 3
Solve by clearing fractions¾ x + ½=2/3

X= 1/8

X= 2/9

X= 14/9

X= 7/8

3/4X+1/2=2/3

1/2X=4

slide6
Equivalent equations are equations that have exactly the same solution(s). Are 2(x-3)-5=4(x-5) and -2x=-9 equivalent equations?

Yes

No

Cannot be determined

?≠?

?=?

is the following aproach correct or incorrect
Is the following aproach correct or incorrect?

Correct

Incorrect

-3y+20=2

-20 -20

-3y =-18

3 3

y=-6

sandra has 54 in her account she is saving 5 6 per week how long will it take her to save 390

Sandra has $54 in her account. She is saving $5.6 per week. How long will it take her to save $390?

62 weeks

75 weeks

79 weeks

60 weeks

slide10

Good Job!

The End