What is the answer to -83=2u-15u-18 ?

The answer to -83=2u-15u-18 is u=5

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-83=2u-15u-18

- 83 = 2 u - 15 u - 18

u = 5

Solution steps

- 83 = 2 u - 15 u - 18

Switch sides

2 u - 15 u - 18 = - 83

Add similar elements:

2 u - 15 u = - 13 u

- 13 u - 18 = - 83

Move

18

to the right side

- 13 u = - 65

Divide both sides by

- 13

u = 5

x^{2} + (x + 28)^{2} = 5 2^{2}

\frac{x ^{2} ( x ^{2} + 1 ) ( x - 2 ) ^{2}}{( x - 1 ) ^{3} ( x + 4 ) ^{4}} \geq 0

12 - 3 x \geq 0

- 2 + x \leq 7

4 a^{2} - b^{2}