How do you solve and check your solution given 3.5a=7?

Mar 31, 2017

$a = 2$

Explanation:

$3.5 a = 7$

$35 a = 70$

$a = \frac{70}{35} = 2$

Check:

Replace $a = 2$ in original equation $\to 3.5 \times 2 = 7$

Hence our result is correct.