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Does y equals 2x - 4 and y equals 2x - 5 have a common solution?
y=2x-4 y=2x-5 y=1 1=2x-4 -2x = -5 x=2/5 the solution is (x,y) = (2/5,1)
Square root of x squared plus 4 equals 4x?
Keep in mind the square root of x squared equals the absolute value of x. So, solving this equation for x involves the following: sqrt(x2)+4=4x |x|+4=4x Solving for |x| yields: |x|=4x-4 Using x=4x-4: -3x=-4, x=4/3. Using x=-(4x-4): x+4x=4 x=4/5 Checking both with the original equation shows that |4/3|+4=16/3=4*4/3, so x=4/3. However, |4/5|+4=24/5, which does not equal 4*4/5, so x does not equal 4/5. This means there is only one solution, x=4/3.
What is the solution to y - x equals 4?
y=x+4
What is 12x plus 5 equals 9x plus 20?
It is an equation in a single variable, x.And, although the question does not ask, the solution is x = 5.It is an equation in a single variable, x.And, although the question does not ask, the solution is x = 5.It is an equation in a single variable, x.And, although the question does not ask, the solution is x = 5.It is an equation in a single variable, x.And, although the question does not ask, the solution is x = 5.
What is the solution to 4x squared minus x minus 5 equals 0?
4x2 - x - 5 = 0 4x2 + 4x - 5x - 5 = 0 4x(x + 1) - 5(x + 1) = 0 (4x - 5)(x + 1) = 0 4x - 5 = 0 or x + 1 = 0 4x = 5 or x = -1 x = 5/4 o x = -1
