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3 years ago

Solve the system of equations using the substitution method.

Mathematics

1 answer:

Katena32 [7]3 years ago

3 0

4x+5y=7
y=3x+9

1) 4x+5(3x+9)=7 2) y=3(-2)+9
y= -6 +9
4x+15x+45=7 y=3
19x+45=7
19x= -38
x= -2
x is -2 and y is 3

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