GMAT · Quantitative Reasoning

Algebra

31 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 31 questions

If $2 x + 4 = 20$ , what is the value of $3 x$ ?
If $6 x + 4 = 22$ , what is the value of $7 x$ ?
If $6 x + 5 = 59$ , what is the value of $7 x$ ?
If $2 x + 4 = 22$ , what is the value of $3 x$ ?
If $3 x + 9 = 21$ , what is the value of $4 x$ ?
If $6 x + 2 = 38$ , what is the value of $7 x$ ?
If $x^{2} - 15 x + 56 = 0$ , what is the sum of the possible values of $x$ ?
If $x^{2} - 6 x + 8 = 0$ , what is the sum of the possible values of $x$ ?
If $x^{2} - 11 x + 30 = 0$ , what is the sum of the possible values of $x$ ?
If $x^{2} - 4 x + 3 = 0$ , what is the sum of the possible values of $x$ ?
If $3 x + 6 = 12$ , what is the value of $4 x$ ?
If $3 x + 9 = 27$ , what is the value of $4 x$ ?
If $4 x + 9 = 21$ , what is the value of $5 x$ ?
If $5 x + 7 = 52$ , what is the value of $6 x$ ?
If $2 x + 5 = 11$ , what is the value of $3 x$ ?
If $x^{2} - 9 x + 18 = 0$ , what is the sum of the possible values of $x$ ?
If $x^{2} - 10 x + 16 = 0$ , what is the sum of the possible values of $x$ ?
If $4 x + 8 = 36$ , what is the value of $5 x$ ?
If $4 x + 4 = 24$ , what is the value of $5 x$ ?
If $2 x + 5 = 15$ , what is the value of $3 x$ ?
If $4 x + 8 = 32$ , what is the value of $5 x$ ?
If $5 x + 5 = 20$ , what is the value of $6 x$ ?
If $3 x + 4 = 25$ , what is the value of $4 x$ ?
If $x^{2} - 13 x + 42 = 0$ , what is the sum of the possible values of $x$ ?
If $x^{2} - 8 x + 7 = 0$ , what is the sum of the possible values of $x$ ?
If $x$ and $y$ are positive integers and $x y + x + y = 41$ , what is the greatest possible value of $x + y$ ?
What is the sum of all real solutions of $∣ x - 2∣ + ∣ x + 3∣ = 9$ ?
The sum of the first $n$ terms of a sequence is $S_{n} = 3 n^{2} + 2 n$ . What is the tenth term of the sequence?
If $5 x + 8 = 53$ , what is the value of $6 x$ ?
If $x^{2} - 14 x + 48 = 0$ , what is the sum of the possible values of $x$ ?
If $x^{2} - 5 x + 4 = 0$ , what is the sum of the possible values of $x$ ?

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