Question

Resuelve las ecuaciones:
4+3x=4x+1
4(x+1)=6(x-1)
2(8x-3)=14+7(x+1)
10x+2x+5=3x+2x-12

Answer 1

a) 4+3x=4x+1
4x-3x=4-1
x=3

b) 4(x+1)=6(x-1)
4x+4=6x-6
6x-4x=6+4
2x=10
x=10/2
x=5

c) 2(x-3)=14+7(x+1)
2x-6=14+7x+7
7x-2x=21+6
5x=27
x=27/5

d) 10x+2x+5=3x+2x-12
12x+5=5x-12
12x-5x=-12-5
7x=-17
x=-17/7