Question

Need a answer
1*5-6+7(9x-7a)

Answer 1

-1 + 63x - 49a

Explanation:

Following order of operations rules:

1*5 = 5

Next, 5 - 6 = -1, and so we now have -1 + 7(9x - 7a).

Apply the distribution rule for multiplication next, obtaining -1 + 63x - 49a