How do you solve the system of equations #2y + 8x = 58# and #y-5x=11# by graphing?

1 Answer
G_Ozdilek
Apr 18, 2017

Simplfy the first equation #y=29-4x# and start graphing.

Explanation:

The first equation is: #y=29-4x#
The second equation is: #y=11+5x#

When you make these equal: #29-4x=11+5x#
#29-11=5x+4x#
#18=9x# or #x=2#

graph{29-4x [-5, 10, -5, 30]}

graph{11+5x [-5, 10, -5, 20]}

y will be #y=21#

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