What is the answer to 9x-45+4x-16=4 ?

The answer to 9x-45+4x-16=4 is x=5

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9x-45+4x-16=4

9 x - 45 + 4 x - 16 = 4

x = 5

Solution steps

9 x - 45 + 4 x - 16 = 4

Group like terms

9 x + 4 x - 45 - 16 = 4

Add similar elements:

9 x + 4 x = 13 x

13 x - 45 - 16 = 4

Subtract the numbers:

- 45 - 16 = - 61

13 x - 61 = 4

Move

61

to the right side

13 x = 65

Divide both sides by

13

x = 5

\frac{x}{2 a} - \frac{1 - x}{a ^{2}} = \frac{1}{2 a}

x, 5 x - 3 y = 1

\frac{( 5 r - 9 )}{3} + \frac{r}{2} = 10

- 8 s = - 7 s + 10

x, x + 2 y = 11