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Simplifying 3r + 10 + -2r + -3 = 12 Reorder the terms: 10 + -3 + 3r + -2r = 12 Combine like terms: 10 + -3 = 7 7 + 3r + -2r = 12 Combine like terms: 3r + -2r = 1r 7 + 1r = 12 Solving 7 + 1r = 12 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 1r = 12 + -7 Combine like terms: 7 + -7 = 0 0 + 1r = 12 + -7 1r = 12 + -7 Combine like terms: 12 + -7 = 5 1r = 5 Divide each side by '1'. r = 5 Simplifying r = 5
| 0.5/20 | | 0=(x+1)(2x-5) | | 5+y-8y+10y=0 | | 9x-10-6x=-9 | | 75x-3x^2-16x+125= | | R-1=3 | | x^2(x^2-25)-9(x^2-25)=0 | | 18y/x=6 | | 20=a-(a*0.05) | | 8x+135=6x | | Y=3squared-6+9 | | Y=3squared-6+99 | | x+x-2000=5000 | | x+x-2000= | | x+2x=5000 | | 125xn=900 | | 5m=3m-8 | | a^2+18a-80=0 | | 5m=3m+16 | | 5m=3m-16 | | 2.5+0.5m=1.0+0.75m | | -123a+456a+256a= | | 14y-7y+2y= | | 25x^4-101x^2+4=0 | | 150(8-1.5)=x(8) | | 115+x=6*x | | 6=20log(x) | | .25m+.1m=9 | | 3a+2b+1c=10 | | .11p+1.5=2.9 | | (2m+2a-y)2= | | z/7=9 |