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Simplifying 7 + 2r = -7r + -1(1 + -1r) 7 + 2r = -7r + (1 * -1 + -1r * -1) 7 + 2r = -7r + (-1 + 1r) Reorder the terms: 7 + 2r = -1 + -7r + 1r Combine like terms: -7r + 1r = -6r 7 + 2r = -1 + -6r Solving 7 + 2r = -1 + -6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6r' to each side of the equation. 7 + 2r + 6r = -1 + -6r + 6r Combine like terms: 2r + 6r = 8r 7 + 8r = -1 + -6r + 6r Combine like terms: -6r + 6r = 0 7 + 8r = -1 + 0 7 + 8r = -1 Add '-7' to each side of the equation. 7 + -7 + 8r = -1 + -7 Combine like terms: 7 + -7 = 0 0 + 8r = -1 + -7 8r = -1 + -7 Combine like terms: -1 + -7 = -8 8r = -8 Divide each side by '8'. r = -1 Simplifying r = -1
| 1/3p+5/3p | | -8*(-56)+7y=-56 | | 0.5x+0.5x=y | | 1/3p=5/3p | | -8x+7*(-56)=-56 | | 2x+-4=2 | | 3(3n+2)+2n=27+8n | | x+3x-13=7(x-9) | | 4x+15-9x=19-17x+12x-4 | | 18/840 | | 13x=5x | | 9000=x^2-18x+56 | | 4x^2+2x+3+[-2x]+6= | | -56=-8x+7 | | 2x+17-9x=20-18x+11x-3 | | -9+9*3= | | (2x-3y)+(x+3y)=180 | | 6x-4=6+4x | | 12x^3+16x^2-28x=0 | | (3/8)/(2/3)=24 | | 5w(12w+1)+12w+1= | | (2x^2+3x-54)/(x^2-5x+6)=0 | | (2x^2+3x-54)/(x^2-5x+6) | | 8000=x^2-18x+56 | | g(3)=9+5 | | 9n-19=5+n | | a+3=-11 | | 4x-5(1-2x)=6(x+3) | | 5(4x+2)=250 | | -3*3-9*-3= | | (3/8)/(2/3) | | -4=-4(-m-2) |