What is the answer to 12x-1+9x-15=53 ?

The answer to 12x-1+9x-15=53 is x= 23/7

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12x-1+9x-15=53

12 x - 1 + 9 x - 15 = 53

x = \frac{23}{7}

Decimal Notation

x = 3.28571 \dots

Solution steps

12 x - 1 + 9 x - 15 = 53

Group like terms

12 x + 9 x - 1 - 15 = 53

Add similar elements:

12 x + 9 x = 21 x

21 x - 1 - 15 = 53

Subtract the numbers:

- 1 - 15 = - 16

21 x - 16 = 53

Move

16

to the right side

21 x = 69

Divide both sides by

21

x = \frac{23}{7}

\frac{x + 1}{4} + \frac{x + 2}{7} = - 3

5 (y - 4) - 19 y = - 7 (2 y + 1)

8 - 9 x - 5 = x + 23

27 - 4 x = - 7 (1 + 3 x)

lo g_{4} (32) = \frac{5}{2}