Question

410-120-a=232 5×3×c=450 56+y=320-80 x÷2=780÷3 96÷a=64÷2

Answer 1

410-120-a=232
290-a=232
a=290-232
a=58
140-120-58=232

5*3*c=450
15:c=450
c=450:15
c=30
5*3*30=450

x:2=780:3
x:2=260
x=260*2
x=520
520:2=780:3

96:a=64:2
96:a=32
a=96:32
a=3
96:3=64:2