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Is this a linear equation x minus 9 equals 0?

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### How do you solve this linear equation 4x-7y equals -4 x plus y equals 0?

4x-7y = -4
4(x+y = 0)
Mutiply all terms in the bottom equation by 4:
4x-7y = -4
4x+4y = 0
Subtract the bottom equation from the top equation:
-11y = -4
Divide both sides by -11 remembering that a minus divided into a
minus becomes a plus:
y = 4/11
Substitute the value of y into the original equations to find
the value of x:
Therefore: x = -4/11 and y = 4/11