PARCC Expressions and Equations 2

Question 1

Solve for x: 2x + 5 = 17

Accepted Answer

x = 6

Answer

Subtract 5 from both sides to get 2x = 12, then divide by 2: x = 6.

Question 2

Simplify: 4a + 7b − 2a + 3b

Accepted Answer

2a + 10b

Answer

Combine like terms: (4a − 2a) + (7b + 3b) = 2a + 10b.

Question 3

A gym charges a $25 sign-up fee plus $15 per month. Which equation gives the total cost C for m months?

Accepted Answer

C = 15m + 25

Answer

The fixed fee is $25 and the variable cost is $15 per month, so C = 15m + 25.

Question 4

Which value of x makes the equation 4x − 3 = 13 true?

Accepted Answer

x = 4

Answer

Adding 3 to both sides gives 4x = 16, and dividing by 4 gives x = 4.

Question 5

Which of the following is NOT a like term with 6x²?

Accepted Answer

6x

Answer

Like terms must have the same variable and exponent; 6x has a different exponent (1) than 6x² (2), so it is not a like term.

PARCC Practice Test