Question

Resolver as equações:

1) 5x-4 = 9x-16
2) 3(x-5) = 8x-4
3) 2(3x+6)-4 = 2(x-5)
4) -4x-6+5x = -10-7x+2
5) -3+6x-4x = x-15+4x

Answer 1

1) 5x-4=9x-16
5x-9x=-16+4
-4x=-12 .(-1)
4x=12
x=12/4
x=3

2) 3(x-5)=8x-4
3x-15=8x-4
3x-8x=-4+15
-5x=11 .(-1)
5x=-11
x=11/5

3) 2 (3x+6)-4=2 (x-5)
6x+12-4=2x-10
6x-2x=-10-12+4
4x=-18
x=-18/4

4) -4x-6+5x=-10-7x+2
-4x+5x+7x=-10+2+6
8x=-2
x=-2/8

5) -3+6x-4x=x-15+4x
6x-4x-x-4x=-15+3
-3x=-12 .(-1)
3x=12
x=12/3
x=4

Bons estudos!