Answer:
-2/3= x
Step-by-step explanation:
square all the terms on both sides to get rid of the radicals:
[tex]1^{2} + (\sqrt{1-x} )^{2} = (\sqrt{2x+4}) ^{2}[/tex]
exponent 2 and the radical cancel each other:
1 + 1 - x = 2x + 4
2 - x = 2x + 4
like terms on each side ( when you move one term tp the other side, it changes its sign ):
2-x = 2x+4
2-4 = +x +2x
-2 = 3x
now to keep the x alone, divide both sides by 3:
-2/3 = 3x/3
-2/3= x
