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Popular >

y=sqrt(-4y+21)

Solution

y = - 4 y + 21

Solution

y = 3

Solution steps

y = - 4 y + 21

Square both sides:

y^{2} = - 4 y + 21

y^{2} = - 4 y + 21

Solve

y^{2} = - 4 y + 21 : y = 3, y = - 7

y = 3, y = - 7

Verify Solutions:

y = 3

True

, y = - 7

False

The solution is

y = 3

Popular Examples

2-x=sqrt(x+5+1)

2 - x = x + 5 + 1

solvefor x,sqrt(x)+sqrt(y)=9 solve for

x, x + y = 9

solvefor x,sqrt(x)+sqrt(y)=7 solve for

x, x + y = 7

2sqrt(x+4)-sqrt(x-1)=4

2 x + 4 - x - 1 = 4

10 9 x = - 50

Frequently Asked Questions (FAQ)

What is the answer to y=sqrt(-4y+21) ?
The answer to y=sqrt(-4y+21) is y=3
Solve for y: y=sqrt(-4y+21)
The solution is y=3