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Pearson Algebra 1 Common Core, 2011 View details

3. Solving Multi-Step Equations

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Exercise 72 Page 100

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

-5

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 isolating it.

3y+5=-10

SubEqn

LHS-5=RHS-5

3y+5-5=-10-5

SubTerms

Subtract terms

3y=-15

DivEqn

.LHS /3.=.RHS /3.

y=-15/3

MoveNegNumToFrac

Put minus sign in front of fraction