To solve: the given system of equations
Answer to Problem 1CYU
The solution of the given system is given by,
Explanation of Solution
Given Information:
The system of equations
Formula Used
Here, three equations with three unknown variables are given. The approach used is variable elimination and simplification.
(1) First two equations are multiplied with a factor such that one of the variables has identical coefficients.
(2) Add the modified equations to eliminate the particular variable.
(3) Then, the same process is repeated between any other combination of two equations.
(4) This gives two equations with two unknowns which can be further solved by elimination.
(3) Substitute the obtained variable in one of the equations to get the second variable and then the third variable.
Calculation Here, the equations are,
Considering the first two equations, Multiplying each of the terms in equation (2) by-4, it becomes
Multiplying each term of the equation (1) by -3,
Now, adding corresponding terms of (4) and (5) gives,
Now, multiplying each term in (3) by 4, the equation becomes,
Subtracting (3) from (6) ,
Substituting the value of
Now, the value of b can be calculated by substituting the values of a and c in (2) ,
Thus, the solution for the given system of equations can be expressed as,
Chapter 3 Solutions
Glencoe Algebra 2 Student Edition C2014
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