Respuesta :

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

answer
a) 4x - 15
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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