Add numbers with the same amount of variables
-x^2 + (-7x^2) = -8x^2
– 28x (+ 14x )= -14x
7 (+ 8) = 15
-18x² - 14x + 15 is your answer
hope this helps
Answer:
X= -3/2
Step-by-step explanation:
6x/6=-9/6
10 because if you 3 with 7 I will make 10
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Answer: the answer to lg is 18