If -10x – 9y = -7 is a true equation, what would be the value of
-30x – 27y?
1 answer:
Answer:
-30x-27y = -21
Step-by-step explanation:
We know that;
-30x-27y = 3(-10x-9y)
Recall, -10x-9y = -7
Thus; -30x-27y = 3(-7) = -21
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