Q
What is the solution to the equation 3(x + 4) = 21 in algebra?

Answer & Solution

Answer: Option B
Solution:
To solve the equation 3(x + 4) = 21, first distribute the 3: 3x + 12 = 21, then solve for x: 3x = 9, x = 3.
Related Questions on Average

Which of the following is a trinomial in algebra?

A). 2x^2 + 5

B). 3x^3 + 2x^2 - x

C). x^2 - 4 + 6

D). 4x + 7

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A). x = 4

B). x = 2

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A). Distributive property

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C). Associative property

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A). Representing unknown quantities

B). Making calculations faster

C). Adding complexity to equations

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A). The number being multiplied

B). The result of multiplication

C). The base raised to a power

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A). 2x^2 + 5

B). 3x^3 + 2x^2 - x

C). x^2 - 4

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What is the correct order of operations in algebraic expressions?

A). Parentheses, Exponents, Multiplication/Division, Addition/Subtraction

B). Exponents, Parentheses, Addition/Subtraction, Multiplication/Division

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D). Addition/Subtraction, Multiplication/Division, Exponents, Parentheses

Which of the following is a quadratic equation in algebra?

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What is the degree of the polynomial 4x^3 + 2x^2 - x + 7?

A). 1

B). 2

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