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Simplifying 3(r + 2) + -5(4 + -1r) + 3 = 12 Reorder the terms: 3(2 + r) + -5(4 + -1r) + 3 = 12 (2 * 3 + r * 3) + -5(4 + -1r) + 3 = 12 (6 + 3r) + -5(4 + -1r) + 3 = 12 6 + 3r + (4 * -5 + -1r * -5) + 3 = 12 6 + 3r + (-20 + 5r) + 3 = 12 Reorder the terms: 6 + -20 + 3 + 3r + 5r = 12 Combine like terms: 6 + -20 = -14 -14 + 3 + 3r + 5r = 12 Combine like terms: -14 + 3 = -11 -11 + 3r + 5r = 12 Combine like terms: 3r + 5r = 8r -11 + 8r = 12 Solving -11 + 8r = 12 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + 8r = 12 + 11 Combine like terms: -11 + 11 = 0 0 + 8r = 12 + 11 8r = 12 + 11 Combine like terms: 12 + 11 = 23 8r = 23 Divide each side by '8'. r = 2.875 Simplifying r = 2.875
| 29x-2y=-5 | | x^2+3x=4x+42 | | X^2+3x=3x+42 | | (b-2)(b-12)= | | 2x-3+x+x+11= | | 9x-8+x+x+12= | | 8.95x-3.50x=1000 | | 8.95x-3.50x=370 | | 1000(8.95x-3.50)=370x | | (8.95-3.50)x-370=1000 | | 2x-((-9x)-(11x))-6=16 | | 3.4c-1.4=6.8 | | (6y-7y-3)-(2y-9y-7)= | | 3x^4-6x^3+2x=0 | | 3(2a+1)+4= | | 7.9-(-2.7)/(-2.7)=x | | 7.9-(-2.7)=x | | 4x^3/2x= | | 2x(3x-5)-(5-3x)=0 | | (7.9-(2.7))/(2.7)=x | | 7.9-(2.7)= | | 0.08=-0.0082x^2+0.06x | | (2x^2-6x)-(3x-3x^2+8x+2)= | | A^2-4A+225=0 | | 15+15x=132-11x | | 24x+9-6x= | | (x^2)+(8x)=4 | | 3y+6x+18=360 | | 8f+2=4f | | (3/2)|2x-5|-2=7 | | 45x^2-4x-5=0 | | -7/8(2) |