ISuckAtHistory03 ISuckAtHistory03

23-02-2018
Mathematics

contestada

Solve the system of equations using the substitution method.
{4x+5y=7
{y=3x+9

Enter your answers in the boxes.

x=

y=

Respuesta :

nicoledaito nicoledaito

24-02-2018

4x+5(3x+9)=7
4x+15x+45=7
19x=7-45
19x = -38
[tex] \frac{19x}{19} = \frac{ - 38}{19} [/tex]
x= -2

y=3(-2)+9
y=-6+9
y= 3

Answer Link

tryftz654321 tryftz654321

13-11-2020

Answer:

-2 and 3

Step-by-step explanation:

Answer Link

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