Question

me ajuda nessa EquaçãoA)3(m+4)+8=2+mB)6x+94+3x=2x+158-xC)20x+18-5x=7x+31+2xD)11(x+2)-400=2(2x-4)+8

Answer 1

Olá

Vamos lá

A)3(m+4)+8=2+m
3m+12+8=2+m
3m-m=2-12-8
2m=-18
m=-18/2
m=-9


B)6x+94+3x=2x+158-x
6x+3x-2x+x=158-94
8x=64
x=64/8
x=8

C)20x+18-5x=7x+31+2x
20x-5x-7x-2x=31-18
4x=13
x=13/4

D)11(x+2)-400=2(2x-4)+8
11x+22-400=4x-8+8
11x-4x=400-22
7x=378
x=378/7
x=54

Bons estudos, dúvidas só chamar !!! :>)) erico munayer