Question

Stiind ca a+b=6, determinati numarul x din 4*a+3*x+4*b=66

Answer 1

a+b=6
4a+3x+4b=66
4(a+b)+3x=66
4x6+3x=66
24+3x=66
3x=66-24
3x=42
x=42:3
x=14

Answer 2

Dai factor Comun pe 4 4(a+b) + 3*x=66 4*6+3*x=66 3*x=42 X= 14