Question

What equation is true when x = 4

Answer 1

• 2x + 5 = 13

Explanation:

To determine which equation is true when x = 4, let's find out if the following equation is true.

Equation 1: 3x + 2 = 20

By substituting x with 4, we get:

• 3(4) + 2 = 20

• 12 + 2 = 20

• 14 = 20

Therefore, this equation is not true when x = 4.

Equation 1: 2x + 5 = 13

By substituting x with 4, we get:

• 2(4) + 5 = 13

• 8 + 5 = 13

• 13 = 13

Therefore, this equation is true when x = 4.

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