Solving Multi-Step Equations in One Variable

Rule

Distributive Property

Multiplying a number by the sum of two or more addends produces the same result as multiplying the number by each addend individually and then adding all the products together.

a( b ± c) &= a* b ± a* c [1ex] ( b ± c) a &= a* b ± a* c

Note that the factor outside the parentheses is multiplied, or distributed, to every term inside. The Distributive Property is used to simplify expressions with parentheses.

a(b+c)=ab + ac

Since the Distributive Property is an axiom, it does not need a proof.

Exercises
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