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Solve using substitution. 6x+y=7 10x+7y=-15 square square

Pergunta

Solve using substitution.
6x+y=7
10x+7y=-15
square  square

Solve using substitution. 6x+y=7 10x+7y=-15 square square

Solução

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DáliaElite · Tutor por 8 anos

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To solve the system of equations using substitution, we can solve one equation for one variable and then substitute that expression into the other equation.

Let's solve the first equation for y:



Now we can substitute this expression for y into the second equation:







Now that we have found the value of x, we can substitute it back into the expression for y:





Therefore, the solution to the system of equations is
and
.
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