Answer:
Step-by-step explanation:
45
Answer:
4x - 4
Step-by-step explanation:
Combine like terms. Like terms are terms with the same variable as well as the same amount of variables:
6x - 2x + 2 - 1 - 4 - 3 + 2
(6x - 2x) = 4x
(2 - 1 - 4 - 3 + 2) = (2 + 2) + (-1 - 4 - 3) = (4) + (-8) = -4
4x - 4 is your answer.
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C - no solution
you take the second solution and times the entire equation by -1
then simply
and you get 0x + 0y = 20
If segment AB is perpendicular to segment CD, then a right angle (90°) is formed.
7x + 27 = 90
7x = 63
x = 9
