Question

7x + 21 = 42

Solve it ​

Answer 1

Answer:

Hii

Step-by-step explanation:

$7x + 21 = 42 \\ \\ = > 7x = 42 - 21 \\ \\ = > 7x = 21 \\ \\ = > x = \frac{21}{7} \\ \\ \boxed{ x = 3}$

Answer 2

Answer:

$3$

Step-by-step explanation:

$7x + 21 = 42 \\ = > 7x = 42 - 21 \\ = > 7x = 21 \\ = > x = \frac{21}{7} \\ = > x = 3$