What is the answer to 7x+20-4x-5=180 ?

The answer to 7x+20-4x-5=180 is x=55

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7x+20-4x-5=180

7 x + 20 - 4 x - 5 = 180

x = 55

Solution steps

7 x + 20 - 4 x - 5 = 180

Group like terms

7 x - 4 x + 20 - 5 = 180

Add similar elements:

7 x - 4 x = 3 x

3 x + 20 - 5 = 180

Add/Subtract the numbers:

20 - 5 = 15

3 x + 15 = 180

Move

15

to the right side

3 x = 165

Divide both sides by

3

x = 55

- 9 = 6 (w - 9)

6 x - 12 = 48

3 x^{2} - 4 x + 8 = 0

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

- \frac{1}{4} - \frac{1}{4}