1 . 3x+4x+1=2,x=?

• A. 1
• B. 3
• C. 2
• D. 4

Answer: Option B

Explanation:

2 . 3x+4x+1=2

• A. $\left(3,\frac{1}{2}\right)$
• B. $\left(3,-\frac{1}{2}\right)$
• C. $\left(2,-\frac{1}{3}\right)$
• D. $\left(-2,3\right)$

Answer: Option B

Explanation:

3 . 3x+4x+1=2

• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option C

Explanation:

4 . 3x+4x+1=2, x=?

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer: Option C

Explanation: