Find the solution of the system of equations{ 11x − 3y = 301−4x + 5y = −43
Question
Find the solution of the system of equations{ 11x − 3y = 301−4x + 5y = −43
Solution
Sure, let's solve the system of equations step by step.
The system of equations is:
- 11x - 3y = 301
- -4x + 5y = -43
Step 1: Multiply the first equation by 5 and the second equation by 3 to make the coefficients of y the same in both equations. This will allow us to eliminate y by adding the two equations together.
So, we get:
- 55x - 15y = 1505
- -12x + 15y = -129
Step 2: Add the two equations together:
(55x - 15y) + (-12x + 15y) = 1505 + (-129)
This simplifies to:
43x = 1376
Step 3: Solve for x by dividing both sides of the equation by 43:
x = 1376 / 43
x = 32
Step 4: Substitute x = 32 into the first equation:
11x - 3y = 301 becomes 11*32 - 3y = 301
352 - 3y = 301
-3y = 301 - 352
-3y = -51
Step 5: Solve for y by dividing both sides of the equation by -3:
y = -51 / -3
y = 17
So, the solution to the system of equations is x = 32 and y = 17.
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