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  • 18-12-2020
  • Mathematics
contestada

Solve the system below using an appropriate method.
A.) (2, 17)
B.) (4, 2)
C.) (1, 9)
D.) (½ , 5)

Solve the system below using an appropriate method A 2 17 B 4 2 C 1 9 D 5 class=

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mg051203
mg051203 mg051203
  • 18-12-2020
using substitution:
4x+2y=12
y=8x+1

4x+2(8x+1)=12

distribute
4x+16x+2=12

combine like terms
18x+2=12

subtract 2 from both sides
20x=10

divide each side by 20
x=10/20

reduce
x=1/2

plug in x for the y= equation
y=8(1/2)+1

multiply
y=4+1

add
y=5

answer:
(1/2,5)
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