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Simplifying 15 + -1[1 + 7y + -2(y + 5)] = -4(4y + -6) + -1[9(y + -1) + -16y + 17] Reorder the terms: 15 + -1[1 + 7y + -2(5 + y)] = -4(4y + -6) + -1[9(y + -1) + -16y + 17] 15 + -1[1 + 7y + (5 * -2 + y * -2)] = -4(4y + -6) + -1[9(y + -1) + -16y + 17] 15 + -1[1 + 7y + (-10 + -2y)] = -4(4y + -6) + -1[9(y + -1) + -16y + 17] Reorder the terms: 15 + -1[1 + -10 + 7y + -2y] = -4(4y + -6) + -1[9(y + -1) + -16y + 17] Combine like terms: 1 + -10 = -9 15 + -1[-9 + 7y + -2y] = -4(4y + -6) + -1[9(y + -1) + -16y + 17] Combine like terms: 7y + -2y = 5y 15 + -1[-9 + 5y] = -4(4y + -6) + -1[9(y + -1) + -16y + 17] 15 + [-9 * -1 + 5y * -1] = -4(4y + -6) + -1[9(y + -1) + -16y + 17] 15 + [9 + -5y] = -4(4y + -6) + -1[9(y + -1) + -16y + 17] Combine like terms: 15 + 9 = 24 24 + -5y = -4(4y + -6) + -1[9(y + -1) + -16y + 17] Reorder the terms: 24 + -5y = -4(-6 + 4y) + -1[9(y + -1) + -16y + 17] 24 + -5y = (-6 * -4 + 4y * -4) + -1[9(y + -1) + -16y + 17] 24 + -5y = (24 + -16y) + -1[9(y + -1) + -16y + 17] Reorder the terms: 24 + -5y = 24 + -16y + -1[9(-1 + y) + -16y + 17] 24 + -5y = 24 + -16y + -1[(-1 * 9 + y * 9) + -16y + 17] 24 + -5y = 24 + -16y + -1[(-9 + 9y) + -16y + 17] Reorder the terms: 24 + -5y = 24 + -16y + -1[-9 + 17 + 9y + -16y] Combine like terms: -9 + 17 = 8 24 + -5y = 24 + -16y + -1[8 + 9y + -16y] Combine like terms: 9y + -16y = -7y 24 + -5y = 24 + -16y + -1[8 + -7y] 24 + -5y = 24 + -16y + [8 * -1 + -7y * -1] 24 + -5y = 24 + -16y + [-8 + 7y] Reorder the terms: 24 + -5y = 24 + -8 + -16y + 7y Combine like terms: 24 + -8 = 16 24 + -5y = 16 + -16y + 7y Combine like terms: -16y + 7y = -9y 24 + -5y = 16 + -9y Solving 24 + -5y = 16 + -9y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '9y' to each side of the equation. 24 + -5y + 9y = 16 + -9y + 9y Combine like terms: -5y + 9y = 4y 24 + 4y = 16 + -9y + 9y Combine like terms: -9y + 9y = 0 24 + 4y = 16 + 0 24 + 4y = 16 Add '-24' to each side of the equation. 24 + -24 + 4y = 16 + -24 Combine like terms: 24 + -24 = 0 0 + 4y = 16 + -24 4y = 16 + -24 Combine like terms: 16 + -24 = -8 4y = -8 Divide each side by '4'. y = -2 Simplifying y = -2
| (4x+2)+(x-1)= | | 15(0.7)-20y=-7 | | 15x-20(.3+.6)=-7 | | 6x^2+17x=45 | | 4(x-3)+17=3(x+4) | | 21x^2-35xy=0 | | 5x+13x=6 | | 3x+4(-2)=7 | | 3(3+-1y)+4y=7 | | 7y-4=13y+8 | | X+3=5x-5 | | 9x^2+12=32 | | 9x^2+5=32 | | 2(2x+10)=40 | | 2x-30=6x+10 | | 4x+5(-3)=9 | | (7-7)=7x+6 | | (7-7) = 7x+6 | | 4a^2+4a+5=0 | | 4(3+-1y)+5y=9 | | 20b^2-17b-63=0 | | 3(11x-5)+2=10x+4 | | 3x^2+5x+9=0 | | 4(1)+5y=9 | | 12y^3+16y^2-3y-4=0 | | 100y^2-49=0 | | 7(2)-9x=77 | | 5r-9=2r+12 | | (8x^3+1)=0 | | 10x^4+20x^3+15x^2=0 | | 7(1.68)-9x=77 | | -.33(4x-5)=6 |