What is the answer to 3x-30+2x-9=180 ?

The answer to 3x-30+2x-9=180 is x= 219/5

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3x-30+2x-9=180

3 x - 30 + 2 x - 9 = 180

x = \frac{219}{5}

Decimal Notation

x = 43.8

Solution steps

3 x - 30 + 2 x - 9 = 180

Group like terms

3 x + 2 x - 30 - 9 = 180

Add similar elements:

3 x + 2 x = 5 x

5 x - 30 - 9 = 180

Subtract the numbers:

- 30 - 9 = - 39

5 x - 39 = 180

Move

39

to the right side

5 x = 219

Divide both sides by

5

x = \frac{219}{5}

21 - 7 x \geq 5

x + 2 = x^{2} + 4

\frac{x ^{2} - 5}{x} + 5 \geq x

r - 7 = 1

2 x^{2} + 1 = x^{2} + 3 x - 1