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Simplifying 6 + -2 + 1 = 3r + -5(r + -2) Combine like terms: 6 + -2 = 4 4 + 1 = 3r + -5(r + -2) Combine like terms: 4 + 1 = 5 5 = 3r + -5(r + -2) Reorder the terms: 5 = 3r + -5(-2 + r) 5 = 3r + (-2 * -5 + r * -5) 5 = 3r + (10 + -5r) Reorder the terms: 5 = 10 + 3r + -5r Combine like terms: 3r + -5r = -2r 5 = 10 + -2r Solving 5 = 10 + -2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2r' to each side of the equation. 5 + 2r = 10 + -2r + 2r Combine like terms: -2r + 2r = 0 5 + 2r = 10 + 0 5 + 2r = 10 Add '-5' to each side of the equation. 5 + -5 + 2r = 10 + -5 Combine like terms: 5 + -5 = 0 0 + 2r = 10 + -5 2r = 10 + -5 Combine like terms: 10 + -5 = 5 2r = 5 Divide each side by '2'. r = 2.5 Simplifying r = 2.5
| 7n+3-5n=9 | | 2x+5(4x+15)=185 | | -[n-1]=16 | | ln(x+2)=6 | | 6z+18=0 | | 25617*271(2617+3782*3727)278816=z | | 2x+5(4x+15)=184 | | 7(2x-3)=-91 | | 8x-6=-13+x | | (m-4)(6m+7)=0 | | 3x-2y-2xy-x= | | n+[3-6n]=28 | | f(x)=x^2+5x-24 | | 18=5q+3 | | 0.27(x+2)=1.89 | | 1/2(3x+35)=5x | | 3(2n+3)=7(6n+9)+3 | | 7x-1=3x-29 | | 8k^2-32k-40=0 | | 4m^2+32=0 | | -3y+4-2y+5=-16 | | ln(x+1)-ln(x)=5 | | 2xy-x-xy= | | 4(w+5)=7w+20-3w | | r^2+3x+2=0 | | -6-6(7+8x)=-192 | | 7.5x=3.2x^2 | | 2x+5(4x-5)=151 | | 0.18(x+2)=-2.61 | | 5x^2=9+12x | | 3t-2=7.8 | | (7x-12)=(2x+9) |