Решите уравнения: (х+2.3)*0.2=0.7 4.2х+8.4=14.7

Question

Решите уравнения: (х+2.3)*0.2=0.7 4.2х+8.4=14.7

Answer 1

1) (x+2.3)*0.2=0.7
0.2x+0.46=0.7
0.2x=0.7-0.46
0.2x=0.24
x=0.24/0.2
x=1.12
2) 4.2x+8.4=14.7
4.2x=14.7-8.4
4.2x=6.3
x=6.3/4.2
x=1.5