Question

calcule as equações
K - 5x+2=2x-1
L - 6-3x=-10-4x
M - 2.(3x-5)=14
N - $\frac{2x-1}{5}$=3

Answer 1

k)

5x + 2 = 2x - 1
5x - 2x = - 1 - 2
3x = - 3
x = -3/3
x = - 1

l)

6 - 3x = - 10 - 4x
- 3x + 4x = - 10 - 6
x = - 16

m)

2(3x - 5) = 14
6x - 10 = 14
6x = 14 +10
6x = 24
x = 24/6
x = 4

n)

2x - 1 = 3
   5

2x - 1 = 5.3
2x - 1 = 15
2x = 15 + 1
2x = 16
x = 16/2
x = 8