Solve the system of equations below. 3x+2y=12+y 4y-7x=10 a.(6,2) ,-2) c.(2,6) ,6)

y=6, x=2

Step-by-step explanation:

Substitute x=12-y/3

Isolate y, then you get 6 is y

x=12-3/3

x=2

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

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