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Home > CCA2 > Chapter 8 > Lesson 8.3.2 > Problem 8-144


Solve the system of equations below for .

Substitute for into the second equation.

Multiply the third equation by then add it to the earlier equation.

Substitute 4 for y in the third equation to solve for .

Substitute for y and for in the first equation to solve for .

Check your values for and in the second equation.