Exams › SSC CGL (Prelims) › Maths

Simplify: $(3x + 4) - (2x - 5)$

1. x + 9
2. x − 1
3. 5x + 9
4. x + 1

Correct answer: x + 9

Solution

Subtracting the second bracket changes the signs inside it: $(3x+4)-(2x-5)=3x+4-2x+5$. Combining like terms gives $x+9$.

Related SSC CGL (Prelims) Maths questions

• If $3x + 2y = 10$ and $2xy = 7$, then find the value of $3x - 2y$ if $3x - 2y > 0$.
• If $x+\frac{1}{x}=3$, then the value of $9x^2+\frac{1}{x^2}-1$ is:
• If $x^2 + y^2 = 280$ and $xy = 120$, then find the value of $\frac{x-y}{x+y}$.
• If \(a + \frac{1}{a} = 12\), then find the value of \(a^2 + \frac{1}{a^2}\).
• If the sum of three numbers is 18 and the sum of their squares is 36, then find the difference between the sum of their cubes and three times their product.
• The sum of the squares of two numbers is 100, and their product is 24. What is the sum of the numbers?

⚔️ Practice SSC CGL (Prelims) Maths free + battle 1v1 →