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siniylev [52]
3 years ago
8

X=y+6 X+6y=20 Solving systems of equations using substitution

Mathematics
1 answer:
vichka [17]3 years ago
8 0
To get the answer we can subsittute first equation into second.
x+6y=20
y+6+6y=20
6+7y=20        /-6
7y=14        /:2
y=2
Now we can back substitute
x=y+6
x=2+6
x=8
Finally we get
x=8
y=2
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\huge \: t =  \frac{13}{2}

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