Question

4 x +8 =22
5 a - 5=10
7 b +17=10

Answer 1

4 x +8 =22
4x= 22-8
4x= 14
x= 14/4

5 a - 5=10
5a= 10 +5
5a= 15
a=15/5
a=3

7 b +17=10
7b= 10 -17
7b= -7
b= -7/7
b=-1