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57

Step-by-step Answer
PAGE: 318SET: ExercisesPROBLEM: 57
Please look in your text book for this problem Statement

The system of equations are .

------------------>      (1)

------------>       (2)

------------->(3)

Use substitution to make a system of two equations in two variables.

Substitute value in equation (2).

Subtract 5 from each side.

Substitute value in equation (3).

Product of two different sings is negative.

Add 2 to each side.

----------------->   (4)

Add equations (1) and (4).

Divide each side by 3.

Substitute x = 2 value in equation (1).

Subtract 2 from each side.

The values are .



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