Question

urgente!!!
resolver las siguientes ecuaciones
-3 (x-1) + 4= 6(x-1) - 5
3(4+x) = 5 (x+4) +1- 3x
7x - 4 (2x-1) +7 = 2 (1+2x) +3

Answer 1

A) -3(x-1)+4=6(x-1)-5

-3x+3+4= 6x-6-5
-3x+7=6x-11
18= 9x
x= 18/9
x=2

B) 3(4+x)=5(x+4)+1-3x
12+ 3x= 5x+20+1-3x
12+3x=2x+21
3x-2x=21-12
x=9

C) 7x-4(2x-1)+7= 2(1+2x)+3

7x-8x+4+7= 2+4x+3
-x+11=5+4x
11-5=4x+x
6=5x
x=6/5