The answer is -2.
im sorry if the work is messy.
Answer:
D = - 9
Step-by-step explanation:
D - 7 = -18
D - 7 + 7 = -18 + 7
D = -9
like terms: -3x^2, -x^2
and 3x, 6x
private document file
X-4=4
Solution :
X=4+4
X=8
:)
