×-20=40,×+15=45,96-×=30

Question

×-20=40,×+15=45,96-×=30

Answer 1

X-20=40
x=40-20
x=20

x+15=45
x=45-15
x=30

96-x=30
x=96-30
x=66

Answer 2

Х-20=40
х=40+20
х=60
60-20=40

х+15=45
х=45-15
х=30
30+15=45

96-х=30
х=96-30
х=66
96-66=30