How to solve the system of equations #8x-y=29# and #2x+y= 11# by graphing?

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Answer 1 · 2018-06-26T20:13:23

#x=4, y=3#

We need to plot the straight lines: #8x-y=29# & #2x+y=11#

Mathematical solution: Adding both the given linear equations, we get

#8x-y+2x+y=29+11#

#10x=40#

#x=4#

#\therefore y=8x-29=8(4)-29=3#

#x=4, y=3#