I have two questions. The first problem I want to make sure I am correct. It looks right to me; however I could be wrong.
1. Perform the indicated operation. If possible, simplify your answer.
5 - 2x + x
x-7 3x-21 2x-14
5 - 2x + x
x-7 3(x-7) 2(x-7)
= 5*6-2x*5+1*2
6(x-7)
= 32 – 10x
6(x-7)
= 2(16-5x)
6(x-7)
= 16-5x
3(x-7)
Problem 2:
4. Solve for x.
x^2 + 8 - 1 = 2(x+4)
x = x
1. Perform the indicated operation. If possible, simplify your answer.
5 - 2x + x
x-7 3x-21 2x-14
5 - 2x + x
x-7 3(x-7) 2(x-7)
= 5*6-2x*5+1*2
6(x-7)
= 32 – 10x
6(x-7)
= 2(16-5x)
6(x-7)
= 16-5x
3(x-7)
Problem 2:
4. Solve for x.
x^2 + 8 - 1 = 2(x+4)
x = x