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26-02-2016
Mathematics

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simplify the expression if possible by combining like terms 9(X+5)+7(X-3)

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26-02-2016

so you do
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a(b+c)=ab+ac
9(x+5)=9x+9 times 5=9x+45

7(x-3)=7x+7 times -3=7x-21

so now we have
9x+45+7x-21
group like terms
9x+7x+45-21
add
16x+24

simplified is 16x+24

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