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Answer is b= -3/x and x=-1

Step-by-step explanation:

Add -10 to both sides

Divide both sides by -2x.

Solve for x

Simplify both sides of the equation.

Subtract 10 from both sides.

Divide both sides by -6.

The heart valves prevent the backward flow of blood.

The aortic valve is located between the left ventricle and the aorta.

After the left ventricle contracts, the aortic valve closes and the mitral valve opens, to allow blood to flow from the left atrium into the left ventricle.

Each valve actually has three flaps, except the mitral valve, which has two flaps.

Explanation:

The heart valves prevent the backward flow of blood.

The aortic valve is located between the left ventricle and the aorta.

After the left ventricle contracts, the aortic valve closes and the mitral valve opens, to allow blood to flow from the left atrium into the left ventricle.

Each valve actually has three flaps, except the mitral valve, which has two flaps.