Solve for H H=7/10(220-a)

$H = \frac{7}{10} (220 - a)$

Apply the distributive property.

$H = \frac{7}{10} \cdot 220 + \frac{7}{10} (- a)$

Cancel the common factor of $10$ .

Factor $10$ out of $220$ .

$H = \frac{7}{10} \cdot (10 (22)) + \frac{7}{10} (- a)$

Cancel the common factor.

$H = \frac{7}{10} \cdot (10 \cdot 22) + \frac{7}{10} (- a)$

Rewrite the expression.

$H = 7 \cdot 22 + \frac{7}{10} (- a)$

Multiply $7$ by $22$ .

$H = 154 + \frac{7}{10} (- a)$

Combine $\frac{7}{10}$ and $a$ .

$H = 154 - \frac{7 a}{10}$

Reorder $154$ and $- \frac{7 a}{10}$ .

$H = - \frac{7 a}{10} + 154$