Question

HOLA ME AYUDARÍAN CON ESTAS ECUACIONES MIL GRACIAS

a) 3(x-1) = x+11

b) 3x+7 = 2(8+x)

c) 5(4+x) = 7x-2

d) 5(3x+2) =8(9 - 2x)

e) 38+7(x-3) = 9(x-1)

f) 2(3x-7)+6 = 4x-3(2-2x)

Answer 1

3(x-1) = x+11 
3x-3 = x + 11
3x-x = 11+3
2x = 14
x = 7

3x+7 = 2(8+x) 
3x + 7 = 16 + 2x
3x-2x = 16-7
x = 9


5(4+x) = 7x-2 
20+ 5x = 7x - 2
20+2 = 7x-5x
22 = 2x
11x =x


5(3x+2) =8(9 - 2x) 
15x+10 = 72 - 16x
15x+16x = 72 - 10
31x = 62
x = 2

38+7(x-3) = 9(x-1) 
38 +7x-21 = 9x-9
17+7x = 9x - 9
17+9 = 9x -7x
26 = 2x 
13 = x

2(3x-7)+6 = 4x-3(2-2x)
6x-14 + 6 = 4x - 6 +6x
6x-8 = 10x - 6
-8+6 = 10x-6x
-2 = 4x
-2/4 = x
-1/2 = x