Question

Х+14=20+14 56-Х=56-11 У-18=90-18

Answer 1

x+14=20+14

x+14=34

x=34-14

x=20

 

56-x=56-11

56-x=45

x=56-45

x=11

 

y-18=90-18

y-18=72

y=18+72

y=90