Applying Operations with Rational Numbers to Expressions and Equations

Solve the equation. Check your solution.

• 80
• 45
• 180
• 5

In the given equation, which number is the coefficient?

• 2
• 5
• -1
• 7

 0.5n + 8.7 = 12.35

• -8.3
• 8.3
• 7.3
• 16

Solve for x.

2/5 + x = 3/4

• 5/9

• 7/20

• 8/20

• 1/9

–1.3x + 1.9 = –11.1

• 7.1

• -10

• 10

• -7.1

• -10

• 10

–14.3 = –1.4 – 3d

• -5.2

• 5.2

• -4.3

• 4.3

Solve for the variable.
4.9 = 0.7m 

• 7
• -7
• 2
• 5

Solve for f:
f - 4 = 6f + 26

• f = -5
• f = 5
• f = 6
• f = -6

Solve for x:
5x - 14 = 8x + 4

• x = 6
• x = -6
• x = -18/13
• x = 10/3