WHO EVER GETS THIS ANSWER CORRECT WILL GET A BRAINLIEST!

What is the answer to this problem:

a. -3(x-1)+8(x-3)=6x+7-5x

what is x?

b. 7(5a-4)-1=14-8a

what is a?

WHO EVER GETS THIS ANSWER CORRECT WILL GET A BRAINLIEST!

What is the answer to this problem:

a. -3(x-1)+8(x-3)=6x+7-5x

what is x?

b. 7(5a-4)-1=14-8a

what is a?

Answer:Step-by-step explanation: