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Simplifying -2(x + 1) = -40 Reorder the terms: -2(1 + x) = -40 (1 * -2 + x * -2) = -40 (-2 + -2x) = -40 Solving -2 + -2x = -40 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -2x = -40 + 2 Combine like terms: -2 + 2 = 0 0 + -2x = -40 + 2 -2x = -40 + 2 Combine like terms: -40 + 2 = -38 -2x = -38 Divide each side by '-2'. x = 19 Simplifying x = 19
| 5=.75x-7 | | x=.75(9)-7 | | x=.75(5)-7 | | 8/12=36/m | | 0.33(6x+5)=10 | | 2x+8x-3x= | | -3(-5n-4)+n=-40 | | x=.75(9)*7 | | -9=-5x+3x+9 | | x=.75(5)*7 | | 9=.75x*7 | | 8/12=36/m= | | 5=.75x*7 | | -8x-8+3x+6=-3x+2 | | 8u^2+14u+15=0 | | http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/col_alg_tut5ex5a.gif | | -9+5x+3x+9= | | 77=7(1+b) | | 0.3(6x+5)=10 | | T/8=144/12= | | 23+4xy-2+ 18= 59 | | 6(-4p-6)=-180 | | -9=5x+3x+9 | | (3/2)=(4/9)^2x-1 | | 16/24=n/108 | | -180=12g | | l+2m=87 | | 8u^2-14u+3=0 | | x+(-21)=-59 | | 3(-5x-5)-7x=117 | | (xr+8)(xr-8)= | | 0.40n+6=10 |
