Question

4 ecuaciones,no me aiudan porfavour​

Answer 1

1. 2x-3=9

2x=9-3

2x=6

x=6/2

x=3

2. 3x-5=10

3x=10+5

3x=15

x=15/3

x=5

3. x+4x=7+13

5x=20

x=20/5

x=4

4. 2+7x-3x=18

4x=18-2

4x=16

x=16/4

x=4