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Big Ideas Math Integrated I, 2016 View details

4. Perimeter and Area in the Coordinate Plane

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Exercise 37 Page 412

Gather all of the variable terms on one side of the equation and all of the constant terms on the other side.

x=- 1

Practice makes perfect

To solve an equation, we should first gather all of the variable terms on one side of the equation and all of the constant terms on the other side, using the Properties of Equality. In this case, the variable term is already on the left-hand side of the equation, so we will start by subtracting 9 from both sides of the equation.

5x+9=4

SubEqn

LHS-9=RHS-9

5x+9-9=4-9

SubTerms

Subtract terms

5x=- 5

DivEqn

.LHS /5.=.RHS /5.

5x/5=- 5/5

MoveNegNumToFrac

Put minus sign in front of fraction