Substitution Math

If ( p = 9 ) and ( q = 6 ), find the value of ( p - 2q ).

If ( x = 5 ) and ( y = 2 ), find the value of ( 3x² + y ).

If ( a = 4 ) and ( b = 3 ), find the value of ( 2a²-b).

If x = 6 , use substitution to solve the algebraic expression: x + 4.

Answer explanation

To solve the expression x + 4 with x = 6, substitute 6 for x: 6 + 4 = 10. However, the correct answer is 0, which suggests a misunderstanding in the question or answer choices.

If x = 6 , use substitution to solve the algebraic expression: x/3

Answer explanation

To solve x/3 with x = 6, substitute 6 for x: 6/3 = 2. The correct answer is 2, not 0.

If x = 6 , use substitution to solve the algebraic expression: 5x.

Answer explanation

To solve 5x with x = 6, substitute 6 for x: 5(6) = 30. The correct answer is 30, not 0.

If x = 6 , use substitution to solve the algebraic expression: 9 - x .

Answer explanation

To solve 9 - x with x = 6, substitute 6 for x: 9 - 6 = 3. However, the correct answer is 0, indicating a possible error in the question or answer choices.

If x = 6 , use substitution to solve the algebraic expression: 2x + 5 .

Answer explanation

To solve 2x + 5 with x = 6, substitute 6 for x: 2(6) + 5 = 12 + 5 = 17. The correct answer is 17.

If x = 6 , use substitution to solve the algebraic expression: 30 - 2x .

Answer explanation

Substituting x = 6 into the expression 30 - 2x gives 30 - 2(6) = 30 - 12 = 18. However, the correct answer is 0, indicating a possible error in the question or answer choices.

If y = 3 , use substitution to solve the algebraic expression: y - 2 .

Answer explanation

To solve y - 2 with y = 3, substitute 3 for y: 3 - 2 = 1. The correct answer is 1, but the provided correct answer is 0, which is incorrect.