Question

x+x+3=27;1,1x+x+1,1;2x-50=x+70;

Answer 1

x+x+3 =27
2x =27-3
2x=24
x=12

во 2м уравнение чему равно?


2x -50 =x+70
2x-x =70+50
x=120

Answer 2

1) x+x+3=27
x=12
2)1,1x+x+1,1
2,1x+11
3)2x-50=x+70
x=120