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Solve each system of equations by using A^-1.

0 votes

x + 4y = 5
3x + 8y = 7

system-of-equations
solving-equations

asked Mar 17, 2014 in ALGEBRA 2 by andrew Scholar

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1 Answer

0 votes

Given equations are x + 4y = 5 and 3x + 8y = 7.

Write the equations in to matrix form .

A is coefficient matrix , X is variable matrix and B is constant matrix.

For it's inverse is .

Substitute the above value in equation (1).

Solution

answered Mar 28, 2014 by david Expert

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