The answer is A since -12 is added on both sides. And when adding with negatives you ALWAYS take the sign of the bigger number :)
Since they are vertical they are equal to each other.
3x + 4 = 7x - 9
4 = 4x - 9
13 = 4x
3.25 = x
So the value of x is 3.25.
Hope this helps :)
Answer:
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Step-by-step explanation:
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Y = kx where k is a constant
27 = k*9
k = 27/9 = 3
required variation is y = 3x
Answer:
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Step-by-step explanation: