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Envision Math 2.0: Grade 7, Volume 2

EM

Envision Math 2.0: Grade 7, Volume 2 View details

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Exercise 5 Page 251

Use the Subtraction Property of Equality to eliminate the addition.

x=4.4

Practice makes perfect

To solve the equation, we have to isolate x on one side. Using the Subtraction Property of Equality, we will subtract 9.8 from both sides of the equation. This will eliminate the addition and isolate x.

x + 9.8 = 14.2

LHS-9.8=RHS-9.8

x + 9.8 -9.8 = 14.2 - 9.8

Subtract terms

x = 4.4

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Review What You Know! p.251