# Chapter 2 - Solving Equations - 2-3 Solving Multi-Step Equations - Lesson Check - Page 97: 7

We would use the distributive property, then add 28, and, finally, divide by 21.

#### Work Step by Step

The distributive property allows us to distribute anything multiplied by something inside of the parenthesis to whatever is inside of the parenthesis. Thus, we distribute the 7 to everything inside the parenthesis, giving us $21x-28=49.$ We now need to get the x alone. Thus, we cancel out the subtraction by adding 28 on both sides. Finally, we use division, so we divide both sides by 21 to isolate x.

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