Question

9 x 7 - a = 5 x 7
b + 10 x 3 = 8x8
91 - (c + 3 x 9) = 6 x 8
d - 7 x8 = 9 x4​

Answer 1

63-a=35
a=63-35
a=28


b+30=64
b=64-30
b=34

91-(c+27)=48
c+27=91-48
c+27=43
c=43-27
c=16

d-56=36
d=56+36
d=92

Answer 2

Răspuns:

63-a=35

a=63-35

a=28

b+30=64

b=64-30

b=34

91-(c+27)=48

c+27=91-48

c+27=43

c=43-27

c=16

d-56=36

d=56+36

d=92