-7 + 2(x-3) = -7+2x-6 = 2x - 13
3(x+y)
x(x + 2)
3x^2 + x + 2x^2 = 5x^2 + x
x - 3x + 4 = 3 - 9 simplify -2x + 4 = -6 -4 -4 -2x = -10 /-2 /-2 x = 5
-7 + 2(x-3) = -7+2x-6 = 2x - 13
3(x+y)
Simplify 4x + 3 = 2x + 8 2x = 5 x =2½
Without parentheses, 3 x 4 = 12 2x + 12 factors to 2(x + 6)
2
x(x + 2)
If there are no equals you can simplify this by collecting all the x values together and use the addition property of signed numbers. 2x+4x-5x+x=2x; 4+3=7. 2x+7 is the simplified statement.
3 * x + 4 + 2xMDAS rule:3x + 4 + 2x5x + 4
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
I assume you wish to simplify the expression (x - 2)/(3x + 9) . (2x + 6)/(2x - 4) = (x - 2)(2x + 6) / [(3x + 9)(2x - 4)] = 2(x - 2)(x + 3) / [6(x + 3)(x - 2)] = 1/3.
5x+2x-3y+y = (5+2)x+(-3+1)y = 7x - 2y
-3