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Simplifying (2x + -3) = 81 Reorder the terms: (-3 + 2x) = 81 Remove parenthesis around (-3 + 2x) -3 + 2x = 81 Solving -3 + 2x = 81 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + 2x = 81 + 3 Combine like terms: -3 + 3 = 0 0 + 2x = 81 + 3 2x = 81 + 3 Combine like terms: 81 + 3 = 84 2x = 84 Divide each side by '2'. x = 42 Simplifying x = 42
| 5(v-1)=40 | | (a+3)=25 | | (a+3)=28 | | (a+3)=2 | | 7y+18=4 | | 4x-200=-20 | | (-6.4)(6.3)= | | (-6.4)*(6.3)=0 | | 7x-xy+2x=18 | | 5b-20=2b+70 | | (-6.4)x(6.3)= | | -24x^2+60x+38=0 | | 4t^2-12t+9=2t^2+5t-26 | | 6t^2-7t-17=0 | | 6x+10=107-7x | | 9x^2+6+1=16 | | 9x^2+6+1=17 | | (1/x)-(1/x-1) | | (1/2)^2x=25/9 | | 9(8x-3)=20 | | 2y=8x+19 | | 10y=12x+9 | | 3x^2+bx+9=0 | | 15x^2-18x+10=0 | | 10x-5y=14 | | (7x+1)by(7x+5)=(3x+1)by(5x+1) | | tan(39)=27/b | | 39=27/b | | 16x^2-45=0 | | 4secx=3cosx | | 800/.80 | | 30-5y=3y+6 |