jojo2079
jojo2079 jojo2079
  • 06-10-2020
  • Mathematics
contestada

Solving systems by substituting

Solving systems by substituting class=

Respuesta :

Imstillhuman
Imstillhuman Imstillhuman
  • 06-10-2020

Explanation:

4x+3y=37

y=x-4

4x+3(x-4)=37

4x+3x-12=37

add 12 to both sides

7x=49

x=7

Now you use plug in x

4(7)+3y=37

28+3y=37

subtract 28 to both sides

3y=9

y=3

answer: x=7 and y=3

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