Asked by Laura ♥
Solve the linear system graphically
(Dont graph it just solve it)
x+ 2y = 8
3x+ 4y = 20
(Dont graph it just solve it)
x+ 2y = 8
3x+ 4y = 20
Answers
Answered by
Reiny
double the first:
2x + 4y = 16
subtract from the 2nd
x = 4
back into the 1st:
4 + 2y = 8
2y = 4
y = 2
x = 4, y = 2
2x + 4y = 16
subtract from the 2nd
x = 4
back into the 1st:
4 + 2y = 8
2y = 4
y = 2
x = 4, y = 2
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