Question

Daca a-5b=7 aflati x din relatia: x-123+5a-25b=137
URGENT VA ROG

Answer 1

a-5b=7 inmultim totul cu 5 si rezulta ca 5a-25b=35

Deci, x-123+35=137

x=137+123-35

x=25

Answer 2

x-123+5a-25b=137

a-5b=7

x-123+5(a-5b)=137

x - 123 + 5 x 7=137

x - 123+35=137

x= 137+123-35

x = 225