x-10=15
Add 10 to both sides
x=25
x=15
x5 times x10 equals x50. This is because when you multiply variables with the same base, you add their exponents (5 + 10 = 15), resulting in x^(5+10) = x^15.
-9
16
8x = 2x + 15 6x = 15 x = 15/6 = 2.5
Divide each side by -15 and x = - 6/15.
x - 15 = - 8 add 15 to both sides: x -15 + 15 = -8 + 15 simplify both sides: x = 7
Yes, if x10=y.
x2+x-15 = 0 Using the quadratic equation formula: x = 3.405124838 or x = -4.405124838
15
(4x+3)(x-5) = 0 x = -3/4 or x = 5
x = -1 Since -3(-1) + 15 = 18