it means -15!! Math hw?
If x is equal to 5, then x squared plus 25 is equal to 50.
If 40 plus x equals 25 then x is equal to -15.
-x+25 = 100 -x = 100-25 -x = 75 x = -75 Substituting the value of x into the original equation: - - 75+25 = 100 Remember that in maths a - - is equal to a +
Technically there are no variables in this equation, as 47 minus 25 is equal to x (22)
2x + 3x = 25 → x ≈ 2.663844636
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
As written, 215 5 + 2 x 10 = 25
If: 75/x = 25 Then: x = 3
10x - 25 = 4x + 510x - 4x = 25 + 56x = 30x = 5
-25
-8x <= -56 so x => 7
25 x 8 + 1 = 201