Question

Determinati numarul x,stiind ca a-b=6 si:

c)7×a-7×b+x=55

Answer 1

$7 \times a - 7 \times b + x = 55$

$7(a - b) + x = 55$

$7 \times 6 + x = 55$

$42 + x = 55$

$x = 55 - 42$

$x = 13$

Answer 2

a-b=6
7(a-b)+x=55
7×6+x=55
42+x=55
x=55-42
x=13

Sper ca te-am ajutat!