Solve by the Substitution Method

question 23

Multiple Choice

Solve by the substitution method.
-7x + 27 = 8y 5x + 6y = -31

• A)No solution
• B)(-5, 0)
• C)(-6, 0)
• D)(-5, -1)

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Definitions:

Air-over-hydraulic Brake System

A brake system that uses air pressure to actuate hydraulic brakes, combining elements of both air and hydraulic braking systems.

Pressure Bleeder

A device used in hydraulic systems to remove air bubbles by applying pressure to the fluid, ensuring proper operation and performance.

Maximum Air System Pressure

The highest pressure that an air system can safely operate at, typically measured in pounds per square inch (psi) or bar.

Lateral Rotor Runout

A condition where a brake rotor is not perfectly aligned on its axis, causing uneven brake pad wear and potential vibration during braking.