If your equation is 5x-2=4x+4
Then this is how you solve it...
5x-2=4x+4
5x-2+2=4x+4+2
5x=4x+6
5x-4x=4x-4x+6
x=6
Your x=6
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5x-2x-3x+4x = (5-2-3+4)x = 4x
True.3x^4 + 4x^3 - 3x^4 + 5x + 1= 4x^3 + 5x + 1
5x + 4 - 3x + 5 + 2x - 9 = 4x
25x2 + 40x + 16 = 25x2 + 20x + 20x + 16 = 5x(5x + 4) + 4(5x + 4) = (5x + 4)(5x + 4) or (5x + 4)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.