Objective The student will be able to:. solve literal equations (formulas) for a specified variable. SOL: A.1. Designed by Skip Tyler, Varina High School. Answer Now. 1) Solve 2x - 4y = 7 for x To get x by itself, what is the first step?. Add 2x Subtract 2x Add 4y Subtract 4y.
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ObjectiveThe student will be able to:
solve literal equations (formulas) for a specified variable.
Designed by Skip Tyler, Varina High School
What is the first thing we are doing to x?
What is the second thing?
Follow the steps in the ‘undo’ column to isolate the variable.
Complete the undo column by writing the opposite operations in opposite order.
+ 4y + 4y
2x = 7 + 4y
This fraction cannot be simplified because both terms in the numerator are not divisible by 2.
- 2x - 2x
-4y = 7 - 2x
y + a = 3c
y = 3c - a
4) Solve for y: 4x – 2y = 12
- 4x - 4x
-2y = 12 – 4x
y = -6 + 2x
or y = 2x - 6