Question

Problem: Solve the following equations for the given variable: 1. P = 2L + 2W for W. 2. 2x + 3y = -10 for y.

Answer 1

EXPLANATION

Given the equations:

1. P = 2L + 2W for W. (Subtracting 2L to both sides)

P - 2L = 2l + 2W - 2l (Dividing both sides by 2)

P/2 -2L/2 = W (Simplifying and switching)

W = P/2 - L

2. 2x + 3y = -10 for y.​ (Subtracting 2x to both sides)

2x - 2x + 3y = -10 -2x (Simplifying)

3y = -2x - 10 (Dividing both sides by 3)

y = -2x/3 - 10/3