Question

mental math solve the equation $\frac{n}{10}+3=10$.
the solution is $square$.
(type the value of n.)

Explanation:

Step1: Subtract 3 from both sides

$\frac{n}{10} + 3 - 3 = 10 - 3$
$\frac{n}{10} = 7$

Step2: Multiply by 10 on both sides

$\frac{n}{10} \times 10 = 7 \times 10$
$n = 70$

Answer:

70