How do you solve $-3x+y=-4$ and $y=x-6$ ?

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Answer 1 · 2016-04-12T01:53:13

Since one variable is already isolated, it will be easiest to solve by substitution.

$y = x - 6 -> -3x + (x - 6) = -4$

$-3x + x - 6 = -4$

$-2x = 2$

$x = -1$

$y = -1 - 6$

$y = -7$

Thus, your solution set is ${-1,-7}$ . Don't forget to present your solution set in the form ${x, y}$ .

Hopefully this helps!

How do you solve -3x+y=-4-3x+y=-4 and y=x-6y=x-6?