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Solve the system of equations using the substitution method. {4x+5y=7 {y=3x+9 Enter your answers in the boxes. x= y=
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Solve the system of equations using the substitution method.

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



Enter your answers in the boxes.

x=


y=

User Oleksii Filonenko
by
7.7k points

2 Answers

3 votes

Answer:

X= -2

Y=3

Explanation:

I took the test and this is correct

User Ben Davison
by
8.0k points
2 votes
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
User A Fader Darkly
by
8.7k points
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