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Popular >

x=sqrt(42-x)

Solution

x = 42 - x

Solution

x = 6

Solution steps

x = 42 - x

Square both sides:

x^{2} = 42 - x

x^{2} = 42 - x

Solve

x^{2} = 42 - x : x = 6, x = - 7

x = 6, x = - 7

Verify Solutions:

x = 6

True

, x = - 7

False

The solution is

x = 6

Popular Examples

sqrt(64)-sqrt(x)=sqrt(9)

64 - x = 9

x + x = 210

8 x - 4 = 2

sqrt(2x+1)=sqrt(2x-1)+1

2 x + 1 = 2 x - 1 + 1

3sqrt(x-1)=2x-11

3 x - 1 = 2 x - 11

Frequently Asked Questions (FAQ)

What is the answer to x=sqrt(42-x) ?
The answer to x=sqrt(42-x) is x=6
Solve for x: x=sqrt(42-x)
The solution is x=6