Question

Solve the following system of equations: x - 2y = 14 x + 3y = 9

a. (1, 12)
b. (-1, -12)
c. (12, -1)
d. (12, 1)

Answer 1

Answer: (12, −1)

Explanation:

Answer 2

solve your system of equations step by step.

x−2y=14;x+3y=9

Solve x−2y=14 for x:

x−2y+2y=14+2y (Add 2y to both sides)

x=2y+14

Substitute (2y+14) for x in x+3y=9:

x+3y=9

2y+14+3y=9

5y+14=9(Simplify both sides of the equation)

5y+14+−14=9+−14 (Add -14 to both sides)

5y=−5

5y5=−55 (Divide both sides by 5)

y=−1

Substitute (−1) for y in x=2y+14:

x=2y+14

x=(2)(−1)+14

x=12(Simplify both sides of the equation)



So,

y=-1
x=12

Answer is C)