Question

kwasi thought of a number, multiplied it by7/2 and added 16 to the results.if the final answer was 30.what number did he think of​

Answer 1

Answer:

4

Step-by-step explanation:

1. represent the number he thought of with x

$\frac{7}{2} x + 16 = 30$

1. multiply through with the LCM which is 2
2. $2 \times \frac{7}{2}x + 16 \times 2 = 30 \times 2$
3. $7x + 32 = 60$
4. $7x = 60 - 32$
5. $7x = 28$
6. $\frac{7x}{7} = \frac{28}{7}$
7. $x = 4$