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Simplifying 5 + (r + 3) = 2r + 6 Reorder the terms: 5 + (3 + r) = 2r + 6 Remove parenthesis around (3 + r) 5 + 3 + r = 2r + 6 Combine like terms: 5 + 3 = 8 8 + r = 2r + 6 Reorder the terms: 8 + r = 6 + 2r Solving 8 + r = 6 + 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. 8 + r + -2r = 6 + 2r + -2r Combine like terms: r + -2r = -1r 8 + -1r = 6 + 2r + -2r Combine like terms: 2r + -2r = 0 8 + -1r = 6 + 0 8 + -1r = 6 Add '-8' to each side of the equation. 8 + -8 + -1r = 6 + -8 Combine like terms: 8 + -8 = 0 0 + -1r = 6 + -8 -1r = 6 + -8 Combine like terms: 6 + -8 = -2 -1r = -2 Divide each side by '-1'. r = 2 Simplifying r = 2
| 45x+35=45x+40 | | 6y=-5x-11 | | 4+x=3-6x | | 3x+23=11x-65 | | 3(3x+1)=4x-6x | | (x-8)(x+9)=7 | | -3y-5=-2y-8 | | N=39+3 | | (2x^3-1.6X)/(x^2-1) | | 20+15=-5(4x-7) | | D=mk^3 | | 3z+8=10z+9 | | D=m^3 | | 5(2x+9)=-42+37 | | x^2+2x-3=3*(x-1)*(x+9) | | 5x+16=8x+31 | | 4x+31=6x-5 | | 0=-4.9x^2-2x+50 | | (-8.6)+6.2= | | 9z-z=-1+3z-1-3 | | 6(x-8)-4(x-1)+9x= | | 3x^2+24x+56=9 | | 3(j+2)=3j+4 | | 4=3x-2/5 | | 3x+5+5x+15=90 | | -2(-3K+2)+(5k-6)-3k-5=0 | | 5a-6=7+2a | | 5a-6=7+a | | 3x+5+5x+20=90 | | x/6-x/12+6=x+6 | | (8)-(8)+10-4= | | 0=-4.9x^2-1.8x+50 |