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Simplifying 2(x + 1) + -7 = 3x + -21 Reorder the terms: 2(1 + x) + -7 = 3x + -21 (1 * 2 + x * 2) + -7 = 3x + -21 (2 + 2x) + -7 = 3x + -21 Reorder the terms: 2 + -7 + 2x = 3x + -21 Combine like terms: 2 + -7 = -5 -5 + 2x = 3x + -21 Reorder the terms: -5 + 2x = -21 + 3x Solving -5 + 2x = -21 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -5 + 2x + -3x = -21 + 3x + -3x Combine like terms: 2x + -3x = -1x -5 + -1x = -21 + 3x + -3x Combine like terms: 3x + -3x = 0 -5 + -1x = -21 + 0 -5 + -1x = -21 Add '5' to each side of the equation. -5 + 5 + -1x = -21 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = -21 + 5 -1x = -21 + 5 Combine like terms: -21 + 5 = -16 -1x = -16 Divide each side by '-1'. x = 16 Simplifying x = 16
| 2x-1=o | | x=535+4.50 | | x=535+4.50n | | 7.7x-3=6.7x | | X/6-4=20 | | 3n+3=20 | | http://www.ace-learning.com/lmscontent/practice/math/02/10/03/org/math021003210000-031q.gif | | -8/7=-2 | | 5+3+2=151021 | | 2(3x+5x)=4 | | -3x+7=-4x-14 | | 3(3+3x)=3 | | 12m^3+20m^2-27m-45=0 | | 3x+37-4x=1-9x+4 | | 12a^3c/4ac | | 29+3y-12=11y-12-2y | | 10x+3x=13 | | 7x-7/2(x-5)=35 | | 4(4c-1)-1=14c+3 | | .2x+10=.3(x+20) | | 4x^2+9x-18=0 | | 3(w-3)-5=-2(-9w+9)-9w | | -1/2÷21/2 | | 6(w+2)=-3(6w-5)+9w | | y-1/3-y2/4=1 | | -4(2x-1)+6x=3+4(2x-1) | | 4x-x=-12 | | 5.25/7/4 | | 26=300-d/150 | | (3x-7y+1)dx+(3x+y-7)dy=0 | | 5y+7x= | | X=0-1500 |
