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Simplifying (7r + 5) + (8r + 9) = 0 Reorder the terms: (5 + 7r) + (8r + 9) = 0 Remove parenthesis around (5 + 7r) 5 + 7r + (8r + 9) = 0 Reorder the terms: 5 + 7r + (9 + 8r) = 0 Remove parenthesis around (9 + 8r) 5 + 7r + 9 + 8r = 0 Reorder the terms: 5 + 9 + 7r + 8r = 0 Combine like terms: 5 + 9 = 14 14 + 7r + 8r = 0 Combine like terms: 7r + 8r = 15r 14 + 15r = 0 Solving 14 + 15r = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + 15r = 0 + -14 Combine like terms: 14 + -14 = 0 0 + 15r = 0 + -14 15r = 0 + -14 Combine like terms: 0 + -14 = -14 15r = -14 Divide each side by '15'. r = -0.9333333333 Simplifying r = -0.9333333333
| 100[0.04(y+2)]= | | 8x+2y+6z-5x+4z-3y= | | 5x=1+16 | | 360-3x+152=y | | 7=8x-57 | | 37-b/5=29 | | 20=.5*(3x+152-y) | | 189=-6*x+3(-7*x-18) | | 21[2s]= | | -16(7y+7x+(-96)+10+7-11-14)= | | x/13=5/9 | | 4xp^2+4yp-y^4=0 | | 20[2s]= | | (49x^8y^4)^1/10 | | x-5*x-10=9+2*x-7 | | 5t-10=10-5t | | X+30=5x+34 | | 98=.5*(x-y) | | 0=-4.9t^2+1960t | | 7x+4=2x+32 | | 9x-2(x-4x)=3x-2(3-x) | | 7*x-9*2=5*x-6 | | 20=.5*(3x+152-x) | | a*a*a+a*a=64a+64 | | m=p(1+(0.08)(7)) | | 20=.5*(2x+152) | | n*n*n-121n=0 | | 0.18(y-4)+0.08=0.10y-0.03(60) | | 37=b+3 | | 40=-16t^2+36t | | 5/7x=21 | | c(x)=2x+2500 |