Need help with this please answer :( I’m not good at math at all
5x + 4y = -7
-5x - 2y = 1
2 answers:
Answer:
y=-3
x=1
(1,-3)
Step-by-step explanation:
5x+4y=-7
-5x-2y=1
Cancel +5x - 5
2y=-6
y=-3
5x-12=-7 or -5x+6=1
5x=5 -5x=-5
x=1 x=1
Answer:
y = -3, x = 1
or
(1, -3)
Step-by-step explanation:
5x + 4y = -7
-5x - 2y = 1
<em>add the two equations together</em>
0x + 2y = -6
2y = -6
2y/2 = -6/2
y = -6/2
y = -3
<em />
<em>now substitute y = -3 into either of the equations</em>
5x + 4y = -7
5x + 4(-3) = -7
5x - 12 = -7
5x = -7 + 12
5x = 5
x = 1
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