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Simplifying (2x + -13) = (x + 7) Reorder the terms: (-13 + 2x) = (x + 7) Remove parenthesis around (-13 + 2x) -13 + 2x = (x + 7) Reorder the terms: -13 + 2x = (7 + x) Remove parenthesis around (7 + x) -13 + 2x = 7 + x Solving -13 + 2x = 7 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. -13 + 2x + -1x = 7 + x + -1x Combine like terms: 2x + -1x = 1x -13 + 1x = 7 + x + -1x Combine like terms: x + -1x = 0 -13 + 1x = 7 + 0 -13 + 1x = 7 Add '13' to each side of the equation. -13 + 13 + 1x = 7 + 13 Combine like terms: -13 + 13 = 0 0 + 1x = 7 + 13 1x = 7 + 13 Combine like terms: 7 + 13 = 20 1x = 20 Divide each side by '1'. x = 20 Simplifying x = 20
| 75+35+x=250 | | x-0.1x=16.19 | | 3xy+4xy+10xy+36xy= | | 2(4x-3)-8=+2x | | 1(4x-3)-8=+2x | | 2k+1=5 | | 13x+7y=29 | | 6+77x=33x+22 | | 9/20-9/15 | | sin(2x)+sin(3x)+sin(5x)=0 | | 4x-3-(3x-2)= | | x+5.3=-12 | | -20=-(x+1) | | -7x+8y=-15 | | -6a+5c= | | x*3-7=83 | | 4(3x)+x=-13 | | 40=2/5x | | 7y+5=73 | | 5x*2+13x*2y= | | 2n+3n=55 | | 2n+3n=63 | | (2x+9)=(3x) | | 15a-(-11a)= | | -7x+8x= | | 8346=x(.30) | | x-7*x-1= | | 11w=8250 | | 9x+4y+8z-5x+4z-5y= | | x^(3/2)=5x^(3/4)-4 | | 26x+57= | | 7900=X(.30) |