Question

a+b=10 ax+by=30 Aflati valoarea lui x.

Answer 1

$ax + bx = 30 \\ x(a + b) = 30 \\ 10x = 30 \\ x = 30 \div 10 \\ x = 3$

Answer 2

Răspuns:

ax+bx=30

x(a+b)=30

10x=30

x=30÷10

x=3