To find : the solution to the given system of equation using elimination method

Answer to Problem 6E
The solution to the system of equation is
Explanation of Solution
Given information : The system of equation is
Concept Involved:
Solution of a system of equation is the point which makes both the equation TRUE.
Graphically the solution to the system of equation is the point where the two lines meet.
Method of Elimination: To use the method of elimination to solve a system of two linear equations in
1. Obtain coefficients for x (or y) that differ only in sign by multiplying allterms of one or both equations by suitably chosen constants.
2. Add the equations to eliminate one variable.
3. Solve the equation obtained in Step 2.
4. Back-substitute the value obtained in Step 3 into either of the originalequations and solve for the other variable.
5. Check that the solution satisfies each of the original equations.
Calculation:
Description | Steps |
Label the given system of equation | |
Add 1st and 2nd equation to eliminate the ‘x’ variable | |
Divide 5 on both sides of the equation | |
Simplify fraction on both sides of the equation | |
Substitute 1 for y in the 1st equation | |
Simplify in left side of the equation | |
Subtract 3 on both sides | |
Combine like terms in left side of the equation |
Conclusion:
The solution to the given system of equation is
Chapter 7 Solutions
EBK PRECALCULUS W/LIMITS
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- The graph of f' is below. Use it to determine where the local minima and maxima for f are. If there are multiple answers, separate with commas. f'(x) 4- -5-4-3-8-1 3 2 1 x 1 2 3 4 5 -1 -2 -3 -4 Local minima at a Local maxima at =arrow_forwardThe graph of f' is below. Use it to determine the intervals where f is increasing. f'(xx) 4- -5 -3 -2 3 2 1 1 2 3 4 5 Cit +x 7 2arrow_forwardPlease focus on problem ii.arrow_forward
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