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Envision Math 2.0: Grade 7, Volume 2 View details

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Exercise 5 Page 353

Use the Subtraction Property of Equality to eliminate the addition.

x = 3/5

Practice makes perfect

To solve the equation, we have to isolate x on one side. Using the Subtraction Property of Equality, we will subtract 25 from both sides of the equation. This will eliminate the addition and isolate x.

2/5 + x = 1

SubEqn

LHS-2/5=RHS-2/5

x = 1 - 2/5

OneToFrac

Rewrite 1 as 5/5

x = 5/5 - 2/5

SubFrac

Subtract fractions

x = 5 - 2/5

SubTerm

Subtract term