Question

Resuelve
a) 6(7-x)=8(6-x)

B) -8(10-x)=-6

c) (x+2).3=(13-x).4+3

d)3(1-2x)+12=10-2(x-3)

Answer 1

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Answer 2

A) 6(7-x)=8(6-x)
42-6x=48-8x
8x-6x=48-42
2x=6x
X=3

B) -8(10-x)=-6
-80+8x=-6
8x=80-6
8x=80-6
8x=74
X=74/8
X=37/4

C) (x+2)•3=(13-x)•4+3
3x+6=52-4x+3
4x+3x=52-6+3
7x=49
X=49/7 = 7

D) 3(1-2x)+12=10-2(x-3)
3-6x+12=10-2x+6
12+3-10-6=6x-2x
-1=4x
-1/4 =x