Question

How to solve 7x+(-3)=18​

Answer 1

7x+(-3)=18

7x-3=18

7x-3+3=18+3

7x=18+3

7x=21

7x/7=21/7

x=21/7

x=3

Answer 2

x=3

Explanation:

7x(-3)=18

add 3 to both sides

7x=21

divide by 7 on both sides

x=3