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Simplifying (y + -7) + 2(4y + 8) = 81 Reorder the terms: (-7 + y) + 2(4y + 8) = 81 Remove parenthesis around (-7 + y) -7 + y + 2(4y + 8) = 81 Reorder the terms: -7 + y + 2(8 + 4y) = 81 -7 + y + (8 * 2 + 4y * 2) = 81 -7 + y + (16 + 8y) = 81 Reorder the terms: -7 + 16 + y + 8y = 81 Combine like terms: -7 + 16 = 9 9 + y + 8y = 81 Combine like terms: y + 8y = 9y 9 + 9y = 81 Solving 9 + 9y = 81 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 9y = 81 + -9 Combine like terms: 9 + -9 = 0 0 + 9y = 81 + -9 9y = 81 + -9 Combine like terms: 81 + -9 = 72 9y = 72 Divide each side by '9'. y = 8 Simplifying y = 8
| 4.6g+9=1.6g+15 | | -15n+9n+6y-11n= | | x^2+6X-11=-4 | | 4y=y+1 | | 2/3x1/6= | | 45q^3-65q=45-65 | | 5x-20+x=50 | | (x+4)(x-7)=o | | 10y=5+45 | | 2x-7-5x^2+2= | | 4(3x)=4(2x-1) | | 2x+4=6*(2x-4) | | 55000+2500x=6200+2000x | | (X+9)(3x-9)=0 | | -10(5+5)=-84 | | 13(11)-28=90 | | 55000+2500x=6200+200x | | 26y+6=26 | | 2x-7-5x^2=2 | | 2.3n=0.92 | | 15+7y=43 | | 3x+7=5+1 | | 5x^2+12x-2160=0 | | (1-lnx)/x | | -(c-81)=3 | | 13x-28+6x+7=180 | | n/2-7=4.1 | | n/2-2=4.12 | | 3y-14=49 | | 5=3p | | 2n+7=-4.1 | | 3y-14=48 |