SOLUTION: having issue with graphing to solve system on linear equitations x+y=12 ,-x+y=4

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Question 888952: having issue with graphing to solve system on linear equitations x+y=12 ,-x+y=4

Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
If both were shown in slope-intercept form,
y=-x+12 and y=x+4.

Plot (0,12) and use the slope -1 to find another point;
Plot (0,4) and use slope 1 to find another point.
Draw appropriate line for each.

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