Find the value of x in the solution to the system of equations shown.

y=12x+7

y=-6x+25

A) x=1 B) x=1.78

C) x=3 D) x=5.33

Question

Mathematics

Mohamed Arellano

22 October, 17:13

Find the value of x in the solution to the system of equations shown.

y=12x+7

y=-6x+25

A) x=1 B) x=1.78

C) x=3 D) x=5.33

+5

Answers (1)

Know the Answer?

Rory Hayes · Answer 1

Y = 12x + 7

y = - 6x + 25

multiply the second equation by 2

y = 12x + 7

y = - 12x + 50

x cancels

y = 57

now plug in the value of y to the first equation

57 = 12x + 7

-7 - 7

50 = 12x

/12 / 12

25/6 = x

Find the value of x in the solution to the system of equations shown.y=12x+7y=-6x+25A) x=1 B) x=1.78C) x=3 D) x=5.33

Find the value of x in the solution to the system of equations shown.

y=12x+7

y=-6x+25

A) x=1 B) x=1.78

C) x=3 D) x=5.33