Question

el valor de x en la ecuacion 3(2a-x)+ax=a2+9

Answer 1

3(2a-x)+ax = a2+9

6a-3x+ax = a^2+9

ax-3x = a^2+9-6a

x(a-3) = a^2-6a+9

x(a-3) = (a-3)^2

x=a-3

Answer 2

6a-3x+ax=2a+9

4a-2ax=9

x=9-4a/-2a