Question

How can i solve this equation , is it an idenity or not ?: 15q-3(4q-6)=3q 9-9q

Answer 1

15q - 3 (4q - 6)=3q + 9 - 9q

15q - 12q + 18 = 3q + 9 - 9q

3q + 18 = -6q + 9 Hint: subtract 3q and -6q

18 = -9q + 9 Hint: add -9 + 9= -18

=18 /-18q

= -1q

Answer 2

15Q-12Q-18=-6Q+9
3Q-18=-6Q+9
+6Q +6Q
9Q-18=9
+18 +18


9Q=27
/9 /9

Q=3