1.

−1,4(x − 6) = 7(4x + 1,2)
−1,4x + 8,4 = 28x + 8,4
−1,4x − 28x = 8,4 − 8,4
−29,4x = 0
x = 0

2.

2,6(0,4x − 1,4) = −3,9(1,2x − 0,9)
1,04x − 3,64 = −4,68x + 3,51
1,04x + 4,68x = 3,51 + 3,64
5,72x = 7,15
x = 7,15 : 5,72
x = 1,25