middleschooler2004 middleschooler2004

06-11-2017
Mathematics

contestada

Simplify: 10x - 3(2x + 5) a) 4x - 15 b) 4x - 5 -36x + 15 c) 7x - 7

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choixongdong choixongdong

06-11-2017

10x - 3(2x + 5)
= 10x - 6x - 15
= 4x - 15

answer
a) 4x - 15

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Аноним Аноним

06-11-2017

10x-3(2x+5)----> 10x-6x+15-------> 4x+15 --------> divide both sides by four and you get x=3.75 or jus x=15÷4(fraction)

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