Question

Calculati:
73-5×a=53
b×6+25=43

Answer 1

1. 73 - 5 x a = 53

73 - 5a = 53

5a = 73 - 53

5a = 20

a = 20  :5

a = 4

2. b x 6 + 25 = 43

6b  + 25 = 43

6b = 43 - 25

6b = 18

b = 18 : 6

b = 3

Answer 2

73 - 5 × a = 53
5 × a = 73 - 53 
5 × a = 20 
a = 20 : 5 
a = 4 

b × 6 + 25 = 43
b × 6 = 43 - 25 
b × 6 = 18 
b = 18 : 6 
b = 3