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Simplifying x + 9 + 5x = 21 + 2x Reorder the terms: 9 + x + 5x = 21 + 2x Combine like terms: x + 5x = 6x 9 + 6x = 21 + 2x Solving 9 + 6x = 21 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 9 + 6x + -2x = 21 + 2x + -2x Combine like terms: 6x + -2x = 4x 9 + 4x = 21 + 2x + -2x Combine like terms: 2x + -2x = 0 9 + 4x = 21 + 0 9 + 4x = 21 Add '-9' to each side of the equation. 9 + -9 + 4x = 21 + -9 Combine like terms: 9 + -9 = 0 0 + 4x = 21 + -9 4x = 21 + -9 Combine like terms: 21 + -9 = 12 4x = 12 Divide each side by '4'. x = 3 Simplifying x = 3
| 8(x-4)+13=21 | | x+2(x+4)=23 | | -9x+4=-50 | | 6x-7=35 | | 2x-7+4x=35 | | 3x-3+5x=37 | | 10x-15x+5=-45+40 | | 16x-8x+12=78+22 | | -2x+14=0 | | 3x+4=28 | | 10z+5=17 | | 12x+2=50 | | 10x+6=11x | | e+7=23 | | e+12=19 | | e+15=18 | | e+18=24 | | l+15=20 | | 7r-5=23 | | t+7=13 | | 4j+3=11 | | 7k=4k+12 | | z-9=63 | | 11x=22 | | 14x-13=9x+1 | | 9x=63 | | 4(x+-7)+12=20 | | 2x+4x+10=12 | | x+5=-3 | | 6x-7=41 | | 5(r+4)=45 | | n-4=10 |