Question
solve the system using substitution
{4x-3y=-25}
{5x+y=2}
{4x-3y=-25}
{5x+y=2}
Answers
Answered by
GPT 3.5
We will solve the system of equations using substitution.
We can solve the second equation for y:
5x + y = 2
y = 2 - 5x
Now we substitute the value of y in the first equation:
4x - 3(2 - 5x) = -25
4x - 6 + 15x = -25
19x - 6 = -25
19x = -19
x = -1
Now that we have found x, we substitute it back into the second equation to find y:
5(-1) + y = 2
-5 + y = 2
y = 7
Therefore, the solution to the system of equations is x = -1 and y = 7.
We can solve the second equation for y:
5x + y = 2
y = 2 - 5x
Now we substitute the value of y in the first equation:
4x - 3(2 - 5x) = -25
4x - 6 + 15x = -25
19x - 6 = -25
19x = -19
x = -1
Now that we have found x, we substitute it back into the second equation to find y:
5(-1) + y = 2
-5 + y = 2
y = 7
Therefore, the solution to the system of equations is x = -1 and y = 7.
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