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larisa86 [58]
3 years ago
6

Solving for systems of equations by substitution. Y=4x X+y=5

Mathematics
1 answer:
dolphi86 [110]3 years ago
7 0
Since the first equation already gives you y, substitute Y for 4x in the second equation.
y=4x
x+y=5

x+(4x)=5
5x=5
x=1

Now that you know x, plug in x for 1 in the first equation.
y=4(1)
y=4
Answer: (1,4)
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