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3 years ago

6

X=5-3Y X=2Y-10 Whats the answer

2 answers:

Scrat [10]3 years ago

8 0

Y=3

x=-4

you have to use substitution. so instead of the equations having two variables, they will now have one.

5-3y=2y-10 after solving for y, plug the answer in any of the equations and you will find x.

prohojiy [21]3 years ago

6 0

X = 5 - 3y
x = 2y - 10

5 - 3y = 2y - 10
<u> + 3y + 3y </u>
   5 = 5y - 10
<u>+ 10 + 10</u>
   <u>15</u> = <u>5y</u>
      5     5
   3 = y
x = 2y - 10
x = 2(3) - 10
x = 6 - 10
x = -4
(x, y) = (-4, 3)

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