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Simplifying 9x + 21 = 3x + 51 Reorder the terms: 21 + 9x = 3x + 51 Reorder the terms: 21 + 9x = 51 + 3x Solving 21 + 9x = 51 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. 21 + 9x + -3x = 51 + 3x + -3x Combine like terms: 9x + -3x = 6x 21 + 6x = 51 + 3x + -3x Combine like terms: 3x + -3x = 0 21 + 6x = 51 + 0 21 + 6x = 51 Add '-21' to each side of the equation. 21 + -21 + 6x = 51 + -21 Combine like terms: 21 + -21 = 0 0 + 6x = 51 + -21 6x = 51 + -21 Combine like terms: 51 + -21 = 30 6x = 30 Divide each side by '6'. x = 5 Simplifying x = 5
| 9x+21=3x+5 | | -3x+15=3 | | 7x+19=54 | | 9x+22=3x+70 | | 18y+4=70 | | (9x^8yz^6)(6x^7z)= | | 4f-12=0 | | x-16=2x-14 | | 4x^4(-6x^5-7)= | | -x-3=x-19 | | 2x-15=x-21 | | 7x-14=-49 | | 6x+79=10x-9 | | 2x+9=-2x+29 | | 11=4-2x | | -0.3x+6=-0.5x+9 | | -0.3+6=-0.5+9 | | x+3=-2x-18 | | -3x+16=x+32 | | 2b^2-7b+6=0 | | (-4x^7)(6)= | | 5x-12=6x-18 | | 11x-15=4x-50 | | 2x+19=39 | | 5x+9=6x+13 | | -2x+17=-1 | | -x-1=-5x+27 | | 5x-14=-49 | | 3x-5=-2x-25 | | -x-1=-5x-25 | | -2x-3=-5x-9 | | 60x-180=5x^2 |