3 years ago

X + y = 9 X + 3y = 13

Mathematics

1 answer:

Bond [772]3 years ago

7 0

Answer: x = 7 and y = 2

X + y = 9 ----equation1

X + 3y = 13 ------equation2

- - -

-2y = -4

y = 2

put the y value back in equation 1

x + 2 = 9

x = 9 - 2

x = 7

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