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Simplifying 20x + 15x + 20(x + -1) + 15(x + -1) = 245 Reorder the terms: 20x + 15x + 20(-1 + x) + 15(x + -1) = 245 20x + 15x + (-1 * 20 + x * 20) + 15(x + -1) = 245 20x + 15x + (-20 + 20x) + 15(x + -1) = 245 Reorder the terms: 20x + 15x + -20 + 20x + 15(-1 + x) = 245 20x + 15x + -20 + 20x + (-1 * 15 + x * 15) = 245 20x + 15x + -20 + 20x + (-15 + 15x) = 245 Reorder the terms: -20 + -15 + 20x + 15x + 20x + 15x = 245 Combine like terms: -20 + -15 = -35 -35 + 20x + 15x + 20x + 15x = 245 Combine like terms: 20x + 15x = 35x -35 + 35x + 20x + 15x = 245 Combine like terms: 35x + 20x = 55x -35 + 55x + 15x = 245 Combine like terms: 55x + 15x = 70x -35 + 70x = 245 Solving -35 + 70x = 245 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '35' to each side of the equation. -35 + 35 + 70x = 245 + 35 Combine like terms: -35 + 35 = 0 0 + 70x = 245 + 35 70x = 245 + 35 Combine like terms: 245 + 35 = 280 70x = 280 Divide each side by '70'. x = 4 Simplifying x = 4
| 21=2(4x+2) | | 2(1.5m+3)=3.5m | | 1+3z=40 | | 5x+6-x=18 | | 10x-3(8-5x)=74 | | 32+(-50)= | | x^6+7x^3-8=0 | | n^2+6n+18=0 | | 7x^2-2=0 | | 8k-5=11 | | 3(5q-4)=2(4q+6) | | 9.5x+15=5.3x+34 | | -4x+6=12 | | 5x-6=-6x+16 | | 2x-5=3x+3 | | a=5a-28 | | 5k+6=21 | | 3y=x+3 | | 8*-5+y=-35 | | 5x-2=6x | | 5+v=10 | | x^2+12=0 | | 2w-8=26 | | 6(3x+11)=30 | | 7x-16x=6x-10 | | 18x^2-9x=0 | | 2x+3x-2=3x-1+3x+1+3x | | 4(x-2)=3(1.5+x) | | A+b=100 | | -8=-2(x+10) | | 9(5x-2)=117 | | 3(x-2)=36 |