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How do you solve -x plus y equals 1 and -2 plus y equals -2 by substitution?
Wiki User
∙ 13y ago
-x+y = 1
-2+y = -2
y = 1+x
y = -2+2 => y = 0
By sustituting the values of x and y can be found
x = -1 and y = 0
Remember that a minus from a minus is equal to a plus. So - -1+0 = 1
Wiki User
∙ 13y ago
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