patiii123
patiii123 patiii123
  • 22-01-2022
  • Mathematics
contestada

can anyone solve this for me

can anyone solve this for me class=

Respuesta :

iciclepiano18
iciclepiano18 iciclepiano18
  • 22-01-2022

Answer:

(-2, -4.5)

Step-by-step explanation:

We can solve this equation with substitution.

x=2y+7

3x-2y=3

We can "substitute" 2y+7 for x into the second equation:

3(2y+7)-2y=3

Distribute the 3

6y+21-2y=3

Add like terms

4y+21=3

Subtract 21 from both sides

4y=-18

Divide both sides by 4 to isolate y

y=-4.5

Plug -4.5 back in for y:

x=2(-4.5)+7

x=-9+7

x=-2

(x,y)=(-2,-4.5)

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