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Simplifying (-8 + -1r) + (2r + -4) = 0 Remove parenthesis around (-8 + -1r) -8 + -1r + (2r + -4) = 0 Reorder the terms: -8 + -1r + (-4 + 2r) = 0 Remove parenthesis around (-4 + 2r) -8 + -1r + -4 + 2r = 0 Reorder the terms: -8 + -4 + -1r + 2r = 0 Combine like terms: -8 + -4 = -12 -12 + -1r + 2r = 0 Combine like terms: -1r + 2r = 1r -12 + 1r = 0 Solving -12 + 1r = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + 1r = 0 + 12 Combine like terms: -12 + 12 = 0 0 + 1r = 0 + 12 1r = 0 + 12 Combine like terms: 0 + 12 = 12 1r = 12 Divide each side by '1'. r = 12 Simplifying r = 12
| x=18-19/6 | | 3rs-12r+5s-8rs+14r-5s= | | (13-3/2r)-(1-r)= | | -9x+3.8+(-x)+(-6.9)= | | .6x=2680 | | x^2=49/9 | | 12x-8=11x+3 | | 6b/5a | | 5y+7=2y-5 | | 9+2y-21y= | | x=.5(3x+7x) | | 3x(x+6y+3z)= | | (y-5)/8=5/6 | | 9(x-6)=22.5 | | y-5/8=5/6 | | 3/7(28/5)-12/5 | | y/6=2.5 | | 21(2+c)+25c=45 | | 4(a+30)=20 | | 7,2.6.10^23/197 | | 0.79+0.48t=1.92t-0.17 | | g(0)=4x^2-6x+3 | | 3/7x-12/5 | | 4/5x4/5x4/5= | | y+7=23.4 | | 3(4t+1)-16=t-(t+12) | | 21(2-c)+25c=45 | | U=6(3n+35)+7(n+1) | | 3x+2-6x-11=18 | | h(-3)=5x^2-7 | | x(x+.15)=.0000000084 | | w-3w+7=3 |