Answer:
(x+3) x+7 is the answer for the first question if it's the same way my school does it. Whatever you put in parentheses is the opposite of what you think. + is going to the left. - is going to the right but those only apply when in parentheses.
Answer:
-9x+12
Step-by-step explanation:
(-8x + 5) - (x – 7)
Distribute the minus sign
(-8x + 5) - x + 7
Combine like terms
(-8x -x+ 5+7)
-9x +12
Answer:
d = 
Step-by-step explanation:
1) To solve for d, isolate it in the equation. So, to get rid of the 
with the d, add 
to both sides.
Thus, d = .
Answer:
In linear expresiion 3 is the coefficient
X will be the variable and -15 will be the constant term.
