Answer:
-2x+2y=-5 is equal to x=y+
5
/2
5x- 6y =8 is equal to x=
6
/5
y+
8
/5
Step-by-step explanation:
Answer:
-4x + y + 6z
Step-by-step explanation:
Combine like terms (Terms with the same variable):
(2x + 5y - z) + (-6x - 4y + 7z)
Add straight across:
2x - 6x = -4x
5y - 4y = y
-z + 7z = 7z - z = 6z
-4x + y + 6z is your answer.
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Answer:
(D) 10x² +2x - 9
Step-by-step explanation:
3x² + 2x - 5
<u>+ 7x² - 4</u>
10x² +2x - 9