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Pearson Algebra 1 Common Core, 2011 View details

1. Solving One-Step Equations

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Exercise 10 Page 85

How can you isolate x on the right-hand side?

x=4

Practice makes perfect

To solve the equation we need to isolate x on one side of the equation. By subtracting 2 from both sides, we can cancel it from the right-hand side.

6=x+2

SubEqn

LHS-2=RHS-2

6-2=x+2-2

SubTerm

Subtract term

4=x

RearrangeEqn

Rearrange equation

x=4

Therefore, x=4 is the solution to the equation. To check that we have the correct solution, we can substitute x=4 into the original equation and simplify.

6=x+2

Substitute

x= 2

6? = 4+2

AddTerms

Add terms

6=6

Since the left-hand side and right-hand side are equal, x=4 is a correct solution.

Subchapter links

Lesson Check p.85

Practice and Problem-Solving Exercises p.85-87

Standardized Test Prep p.87

Mixed Review p.87

Exercise 10 Page 85

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Practice exercises

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