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  • 22-01-2021
  • Mathematics
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Solve the system of equations - 9x - 2y = -3 and -20 – 3y = 7 by combining the equations.​

Solve the system of equations 9x 2y 3 and 20 3y 7 by combining the equations class=

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nabse nabse
  • 22-01-2021
x = 1, y = -3

-9x - 2y = -3 (1)
-2x -3y = 7 (2)

From (1), make new equation, y = (3-9x)/2 (3)

From the new equation (3), substitute the y value into (2). Solve it, and you get the value of x.

Once u get the value of x, substitute it into (3) then you get the value of y.

The step by step solution is in the image below :)
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