Question

afla numarul necunoscut;(162+12_164)·a=100

Answer 1

(162 + 12 - 164) × a = 100
(174 - 164) × a = 100
10 × a = 100
a = $\frac{100}{10}$
a = 10

Answer 2

(162+12-164)•a=100
(174-164)•a=100
10•a=100
a=100:10
a=10