Answer: x = -1.4; y = -1.2
Explanation:
y = -2x - 4
y = 3x + 3
Substitute
3x + 3 = -2x - 4
Add 2x to both sides
5x + 3 = -4
Subtract 3 from both sides
5x = -7
Divide both sides by 5
x = -1.4
y = -2x - 4
Substitute -1.4 for x
y = -2 (-1.4) - 4
y = 2.8 - 4
y = -1.2
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