sarella
Answered

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6x + y = 15
-7x - 2y = -10

Sagot :

mouseycritter

Answer: x = 4 y=-9

Step-by-step explanation:

Answer:

x = 4

y = -9

Step-by-step explanation:

Isolate a variable from one of the equations ( I chose the first equations cuz it's easy): 6x + y = 15 will be y = 15 - 6x

Substitute the above equation in the place of y in the second equations:

-7x -2(15 - 6x) = -10

-7x -30 + 12x = -10

-30 + 5x = -10

5x = 20

x = 4

To find y-value, substitute the x-value gotten in any equation:

y = 15 - 6(4)

y = 15 - 24

y = -9

Hope this helps!

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