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# Which of the following equations can be formed starting with x = 0

(a) 2x + 1 = -1

(b) x/2 + 5 = 7

(c) 3x - 1 = -1

(d) 3x - 1 = 1

**Solution:**

Let’s solve each of the equation to find out the correct option.

(a) 2x + 1 = -1

2x = - 1 - 1

x = -2/2

x = -1

(b) x/2 + 5 = 7

x/2 = 7 - 5

x = 4

(c) 3x - 1 = -1

3x = -1 + 1

x = 0/3

x = 0

(d) 3x - 1 = 1

3x = 1 + 1

x = 2/3

Hence out of the four options, the correct option is (c) 3x - 1 = - 1

**✦ Try This:** Which of the following equations can be formed starting with x = 0? (a) 2x + 1 = 1, (b) x + 5 = 7, (c) 2x + 1 = 1, (d) x - 1 = 1

Let’s solve each of the equation to find out the correct option.

(a) 2x + 1 = 1

2x = 1 - 1

x = 0/2

x = 0

(b) x + 5 = 7

x = 7 - 5

x = 2

(c) 2x + 1 = 1

2x = 1 - 1

x = 0/2

x = 0

(d) x - 1 = 1

x = 1 + 1

x = 2

Hence out of the four options, the correct option is (c) 2x + 1 = 1

**☛ Also Check: **NCERT Solutions for Class 7 Maths Chapter 4

**NCERT Exemplar Class 7 Maths Chapter 4 Problem 14**

## Which of the following equations can be formed starting with x = 0 (a) 2x + 1 = -1, (b) x/2 + 5 = 7, (c) 3x - 1 = -1, (d) 3x - 1 = 1

**Summary:**

Hence out of the four options, the correct option is (c) 3x - 1 = -1

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