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Simplifying 21x + -15x + -7 = 5 Reorder the terms: -7 + 21x + -15x = 5 Combine like terms: 21x + -15x = 6x -7 + 6x = 5 Solving -7 + 6x = 5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 6x = 5 + 7 Combine like terms: -7 + 7 = 0 0 + 6x = 5 + 7 6x = 5 + 7 Combine like terms: 5 + 7 = 12 6x = 12 Divide each side by '6'. x = 2 Simplifying x = 2
| (7x/8)-(x-2)=12 | | -36+324= | | (1-6x+2u)(-3)= | | 0.15*0.23= | | 7x+8+5x+2+7x-1=180 | | -11x+x^2=-2+30 | | 8.2=2x-4 | | -5(-5x-v+6)= | | y=25(3)+200 | | 4n-3=16 | | 0.27*0.56= | | y=25(3)-200 | | 4h-7g+11g-h= | | 12-3x=4+(-4x) | | x^2-11x+214=0 | | (5x+4)+(4d+5)= | | 4K-5=2k-1 | | 8x-20=64 | | http://www.thelearningodyssey.com/Assess/DPT/QIEImagesStorage/AQ13A/AQ13AI_A1322_14_stem1_1.gif | | 7a-4=4(3a+1) | | 1+(P-1)=5(P+6) | | -7x-117=12x+130 | | -9-2m-m=8m-9 | | 16x^2-40x+100=0 | | x^2-10x+16=o | | X^4+14x^2-49=0 | | -9x-15=-8x+11 | | -(3u-2x-3)= | | t/8-8=8 | | -18-3x=6-4x | | (-2+2v+2u)(-7)= | | -2*x+9=25 |
