Simplify 10 square root of 7+12 square root of 7-8 square root of 7+ square root of 7

$10 \sqrt{7} + 12 \sqrt{7} - 8 \sqrt{7} + \sqrt{7}$

Add $10 \sqrt{7}$ and $12 \sqrt{7}$ .

$22 \sqrt{7} - 8 \sqrt{7} + \sqrt{7}$

Subtract $8 \sqrt{7}$ from $22 \sqrt{7}$ .

$14 \sqrt{7} + \sqrt{7}$

Add $14 \sqrt{7}$ and $\sqrt{7}$ .

$15 \sqrt{7}$

The result can be shown in multiple forms.

Exact Form:

$15 \sqrt{7}$

Decimal Form:

$39.68626966 \dots$