Question

2x-13=15;130-4х=70;9y-89=55;помогите решить уравнения

Answer 1

2х-13=15                                                                                                           
2х=15-13
2х=2
х=2:2
х=1

Answer 2

2x-13=15
2x=15+13
2x=28
x=14

130-4x=70
4x=130+70
4x=200
x=50

9y-89=55
9y=55+89
9y=144
y=16