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Solve the following system of equations using substitutions 2x plus 3y equals -1 and 5x-2y equals -12?
Wiki User
∙ 14y ago
First get y in terms of x: 5x-2y=-12 ----- -2y=-12-5x ------ y=6+(5/2)x
Sub into other equation: 2x+3y=-1 ---- 2x+3(6+(5/2)x)=-1
Solving for x gets: x= -2
Sub into other equation: 5x-2y= -12 --- 5(-2)-2y= -12 --- y=1
So x= -2, and y= 1
Wiki User
∙ 14y ago
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