jacksongivens jacksongivens
  • 26-06-2020
  • Mathematics
contestada

Solve the simultaneous equations 2x + 3 = 13 4x +- y = -2

Respuesta :

Toodles568
Toodles568 Toodles568
  • 26-06-2020

Answer:

x=5 and y=22

Step-by-step explanation:

2x+3=13

2x+3+−3=13+−3(Add -3 to both sides)

2x=10

[tex]\frac{2x}{2}[/tex] = [tex]\frac{10}{2}[/tex] (Divide both sides by 2)

x  = 5

Substitute5forxin4x−y=−2:

4x−y=−2

(4)(5)−y=−2

−y+20=−2(Simplify both sides of the equation)

−y+20+−20=−2+−20(Add -20 to both sides)

−y=−22

[tex]\frac{-y}{-1}[/tex] = [tex]\frac{-22}{-1}[/tex]  (Divide both sides by -1)

y=22

Hope this helped!!

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