Home > CC3MN > Chapter 6 Unit 10 > Lesson INT1: 6.4.2 > Problem6-143

6-143.

Solve each equation below for the indicated variable. Show all steps.

1. Solve for $x$: $2x + 22 = 12$

$x = −5$

1. Solve for $y$: $2x − y = 3$

Add $y$ to both sides of the equation.

How can you move $3$ to isolate $y$ on the right side of the equation?

1. Solve for $x$: $2x + 15 = 2x − 15$

If you subtract $2x$ from both sides of the equation, what kind of statement is left? Is there any value of $x$ that will make this equation true?

1. Solve for $y$: $6x + 2y = 10$

$y = 5 − 3x$