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Solve this system of equations using substitution, show your work (ANSWER QUICK PLEASE)

Solve this system of equations using substitution, show your work (ANSWER QUICK PLEASE-example-1
User Thanikkal
by
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1 Answer

10 votes

Answer:


\boxed{\sf{y=-50 \quad x=3}}

Explanation:

Isolate the term of x and y from one side of the equation.

y=-15x-5 and 11x+y=-17

First, you have to substitute.


\sf{y=-15x-5=11x-15x-5=-17}

Then, you solve.


\sf{-4x-5=-17}

Add by 5 from both sides.

-4x-5+5=-17+5

Solve.

-17+5=-12

-4x=-12

Divide by -4 from both sides.

-4x/-4=-12/-4

Solve.

-12/-4=3

x=3

y=-15*3-5


Solve.

PEMDAS stands for:

  • Parenthesis
  • Exponents
  • Multiply
  • Divide
  • Add
  • Subtract

15*3=45

Rewrite the problem down.

y=-45-5

Solve.

y=-50

Therefore, the correct answer is y=-50 and x=3.

I hope this helps you! Let me know if my answer is wrong or not.

User Rassakra
by
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