Answer:
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Step-by-step explanation:
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For this case, what we are going to do is use the following property:
Multiply an equation by a scalar.
In this case, the scalar will be:
k = -2
We have then that equation 2 will be:
k * (4x + y) = k * 1
-2 * (4x + y) = - 2 * 1
-8x-2y = -2
Answer:
The property that justifies this manipulation is:
Multiply an equation by a scalar.
He would travel 67 1/2 miles in an hour.
The only correct answer is "D" 9X-3.
Use mental calculation. Do working in your head
