Question

a) 4 (x - 10) = -6 (2 - x) - 6x
b) 2 (2x - 3) = 6 + x
c) 3/4(2x + 4) = x + 19
Son ecuaciones lineales.

Answer 1

a) 4 (x - 10) = -6 (2 - x) - 6x
    4x-40=-12+6x-6x
    4x-40=-12
    4x=-12+40
    4x=28
x=28/4
x=7

b) 2 (2x - 3) = 6 + x
4x-6=6+x
4x-x=6+6
3x=12
x=12/3
x=4

c) 3/4(2x + 4) = x + 19
6x+12=4(x+19)
6x+12=4x+76
6x-4x=76-12
2x=64
x=64/2
x=32