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Combine like terms. A)2y-8y+9-12^2-8y+3 B)4(2-x)-3(-5-12x)
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High School Teacher
Combine like terms: like terms have the same variables to the same power,
==> 2y-8y+9-144-8y+3 Since addition is commutative we can write
==> 2y-8y-8y-132 Now factor a common y out of the first 3 terms
(b) 4(2-x)-3(-5-12x) Use the distributive property to lose ():
==>8-4x+15+36x rewrite using teh commutative property
==>-4x+36x+8+15 factor a common x out of the first 2 terms
Posted by embizze on February 22, 2013 at 1:51 PM (Answer #1)
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