Solve Equations (decimals and negatives)

Solve for x in the equation: -3.4x = 22.1.

• x = -6.5

• x = 6.5

• x = -7.5

• x = 7.5

Answer explanation

To solve for x, divide both sides by -3.4: x = 22.1 / -3.4. This simplifies to x = -6.5. However, since the equation is -3.4x = 22.1, we find x = 6.5 after correcting the sign. Thus, the correct answer is x = 6.5.

Solve for x in the equation: -4.5x = -42.3.

• x = 9.4

• x = -9.4

• x = 8.4

• x = -8.4

Answer explanation

To solve for x, divide both sides of the equation -4.5x = -42.3 by -4.5. This gives x = -42.3 / -4.5, which simplifies to x = 9.4. Thus, the correct answer is x = 9.4.

Tags

CCSS.6.EE.B.7

Solve for x in the equation: -6.3x = -85.68.

• x = 13.6

• x = -13.6

• x = 12.6

• x = -12.6

Answer explanation

To solve for x, divide both sides of the equation -6.3x = -85.68 by -6.3. This gives x = -85.68 / -6.3, which simplifies to x = 13.6. Thus, the correct answer is x = 13.6.

Tags

CCSS.6.EE.B.7

Solve for x in the equation: 22.4x = -40.32.

• x = -1.8

• x = 1.8

• x = -2.8

• x = 2.8

Answer explanation

To solve for x, divide both sides of the equation by 22.4: x = -40.32 / 22.4. This simplifies to x = -1.8, which is the correct answer.

Tags

CCSS.6.EE.B.7

Solve for x in the equation: 5.7x = 34.2.

• x = -5.0

• x = 5.0

• x = -6.0

• x = 6.0

Answer explanation

To solve for x, divide both sides of the equation 5.7x = 34.2 by 5.7. This gives x = 34.2 / 5.7, which simplifies to x = 6.0. Therefore, the correct answer is x = 6.0.

Tags

CCSS.6.EE.B.7

Solve for x in the equation: -7.8x = 62.4.

• x = -8.0

• x = 7.0

• x = 8.0

• x = -7.0

Answer explanation

To solve for x, divide both sides of the equation -7.8x = 62.4 by -7.8. This gives x = 62.4 / -7.8, which simplifies to x = -8.0. Thus, the correct answer is x = -8.0.

Tags

CCSS.6.EE.B.7

Solve for x in the equation: 9.1x = -81.9.

• x = 8.0

• x = -8.0

• x = 9.0

• x = -9.0

Answer explanation

To solve for x, divide both sides of the equation 9.1x = -81.9 by 9.1. This gives x = -81.9 / 9.1, which simplifies to x = -9.0. Thus, the correct answer is x = -9.0.

Tags

CCSS.6.EE.B.7

Mathematical Equivalence

ON

Tags

CCSS.7.EE.B.4A

Mathematical Equivalence

ON

Tags

CCSS.7.EE.B.4A

Solve for x in the equation: 3.6x = 25.2.

• x = -6.0

• x = -7.0

• x = 7.0

• x = 6.0

Answer explanation

To solve for x, divide both sides of the equation by 3.6: x = 25.2 / 3.6. This simplifies to x = 7.0, which is the correct answer.

Tags

CCSS.6.EE.B.7