Solve by substitution: 7x+4y=14 and x+2y=12
HURRY I'LL GIVE BRAINLIEST!!

x = -2

y = 7

Step-by-step explanation:

x = 12 - 2y

7(12 - 2y) + 4y = 14

84 - 14y + 4y = 14

84 - 10y = 14

10y = 70

y = 7

x = 12 - 2 x 7

x = 12 - 14

x = -2

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft