Question

When solving 20x+5y=40 for y

Answer 1

Simplifying
20x + -5y = 40

Solving
20x + -5y = 40

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '5y' to each side of the equation.
20x + -5y + 5y = 40 + 5y

Combine like terms: -5y + 5y = 0
20x + 0 = 40 + 5y
20x = 40 + 5y

Divide each side by '20'.
x = 2 + 0.25y

Simplifying
x = 2 + 0.25y

Answer 2

The answer is y=-4x+8. The paper shows how to solve the equation step by step.