Evaluate 7x minus 4 when x equals 5.
AEquals 3
BEquals 31
CEquals 35
DEquals 27
Answer & Solution
Correct answer: B. Equals 31
1. Substitute 5 for x in 7x minus 4 to get 7 times 5 minus 4.
2. Multiply first: 7 times 5 is 35.
3. Subtract: 35 minus 4 equals 31.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 1 "Foundations", section 1.2 Use the Language of Algebra_
Related questions
Simplify by combining like terms: 3x squared + 7x + 9 + 7x squared + 9x + 8.Is zero a positive number or a negative number?Add: 37 + (-53).Simplify: 30 divided by 5, plus 10 times (3 minus 2).The saying "Please Excuse My Dear Aunt Sally" helps students remember what?List the multiples of 9 and the multiples of 12. What is the first number to appear on botFind the prime factorization of 80.Check 4,962 with the divisibility tests for 2, 3, 5, 6, and 10. Which complete list of tho