Use properties of operations to write an expression equivalent to the sum of the expressions 3(g + 5) and 2(3g - 6)

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14-03-2017
Mathematics

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Use properties of operations to write an expression equivalent to the sum of the expressions 3(g + 5) and 2(3g - 6)

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apologiabiology apologiabiology · Answer 1 · 2017-03-14T22:01:36+01:00

apologiabiology apologiabiology

14-03-2017

well, you would istribute
using
a(b+c)=ab+ac
so

3(g+5)=3(g)+3(5)=3g+15
2(3g-6)=2(3g)+2(-6)=6g-12

now we gots
3g+15+6g-12
using commutative, we can arrange and group like terms because
a+b=b+a
so
3g+6g+15-12
add
9g+3

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