x - 2x + 3 = 3 - x
2X divided by 4= 2X
-3
X = 0.8
x(x + 2)
10xy+x
csc^2x+cot^2x=1
10
you need to reorder the problem by manipulating the numbers -2x-7=-x+13 group your variables and constants thus -x-2x=7+13 simplify -3x=20 simplify again x=-20/3
-7 + 2(x-3) = -7+2x-6 = 2x - 13
2x3x-4= -24
Without parentheses, 3 x 4 = 12 2x + 12 factors to 2(x + 6)