What is the answer to sqrt(x+21)-sqrt(x-12)=3 ?

The answer to sqrt(x+21)-sqrt(x-12)=3 is x=28

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sqrt(x+21)-sqrt(x-12)=3

x + 21 - x - 12 = 3

x = 28

Solution steps

x + 21 - x - 12 = 3

Remove square roots

576 = 36 x - 432

Solve

576 = 36 x - 432 : x = 28

x = 28

Verify Solutions:

x = 28

True

The solution is

x = 28

x, 15 x^{2.13} + x x^{3} = 0

7 x = x

x - 13 x + 30 = 0

2 x + 5 x - 12 = 0

6 = 2 π \frac{x}{9.8}

What is the answer to sqrt(x+21)-sqrt(x-12)=3 ?
The answer to sqrt(x+21)-sqrt(x-12)=3 is x=28
Solve for x: sqrt(x+21)-sqrt(x-12)=3
The solution is x=28