What is the answer to 5(x-3)2+4=129 ?

The answer to 5(x-3)2+4=129 is x= 31/2

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5(x-3)2+4=129

5 (x - 3) 2 + 4 = 129

x = \frac{31}{2}

Decimal Notation

x = 15.5

Solution steps

5 (x - 3) \cdot 2 + 4 = 129

Multiply the numbers:

5 \cdot 2 = 10

10 (x - 3) + 4 = 129

Move

4

to the right side

10 (x - 3) = 125

Divide both sides by

10

x - 3 = \frac{25}{2}

Move

3

to the right side

x = \frac{31}{2}

\frac{4 x - 8}{2} = 16

12 x - 4 = 3 x + 9

5 (w + 3) - 2 w = - 3

8 (m + 2) = 5 (m + 5)

5 x = 4 x