Solve the equation. x2 − 6x − 7 = 0 A) x = 7 B) x = 1 C) x = 1 or x = −7 D) x = −1 or x = 7
1 answer:
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9(2w−y)=21w−9y
First you multiply the numbers in the parenthesis by 9
subtract. 21w-18w=3w
add. -9y+9y=0
divide.
Final answer is 0.