Mathematics, 28.08.2019 13:30 franstirlacci

Solve using graphical method
2x + 5y = 20
y = 7
solve using the substitution method.
a) y = 3x + 1
x + 2y = 16
b) y = 2x + 7
3y - 4x = 11
c) 2x + 5y = 6
y = 3 / 2x + 5
d) y = -x
y = 8x + 21
e) y = 3x - 11
y = 5x + 17
f) y = 4x - 17
y = 6x - 22
solve using the elimination method.
a) 3x - 7y = -2
-2x - 7y = 13
b) 5x + 2y = 6
4x + 3y = 2

Answers: 1

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Solve using graphical method
2x + 5y = 20
y = 7
solve using the substitution meth...