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Systems of equations

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3x+4y=-8
2x+3y=-3

4x+y=5
12x+3y=15

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Solution Summary

This provides two examples of solving systems of two linear equations.

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We can solve this problems using substitution method.

3x+4y=-8 -------------------(1)
2x+3y=-3 -------------------(2)

Take the first equation 3x +4y = -8 and write it in terms of x.

4y = -8 -3x
y= -2 -3/4 x

Now, plug in y = -2 -3/4x in the equation (2).

2x + 3 (-2 -3/4x) = -3

2x - 6 ...

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