What is the answer to 2/7 (7u+14)-8=18 ?

The answer to 2/7 (7u+14)-8=18 is u=11

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2/7 (7u+14)-8=18

\frac{2}{7} (7 u + 14) - 8 = 18

u = 11

Solution steps

\frac{2}{7} (7 u + 14) - 8 = 18

Multiply

\frac{2}{7} (7 u + 14) : \frac{2 ( 7 u + 14 )}{7}

\frac{2 ( 7 u + 14 )}{7} - 8 = 18

Move

8

to the right side

\frac{2 ( 7 u + 14 )}{7} = 26

Multiply both sides by

7

2 (7 u + 14) = 182

Divide both sides by

2

7 u + 14 = 91

Move

14

to the right side

7 u = 77

Divide both sides by

7

u = 11

80 x - \frac{x ^{2}}{4} + x \frac{y}{20} + 70 y - \frac{y ^{2}}{10} + x \frac{y}{30}

15 b^{2} + 4 b - 4 = 0

∣ x ∣ - 1 = 2 x + 2

0 \leq - 2 x^{2} + 8 x + 8 \leq 10

(3 - 2 i) (4 + i)