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Simplifying (x + 9) + (3x + 6) + (7x) = 180 Reorder the terms: (9 + x) + (3x + 6) + (7x) = 180 Remove parenthesis around (9 + x) 9 + x + (3x + 6) + (7x) = 180 Reorder the terms: 9 + x + (6 + 3x) + (7x) = 180 Remove parenthesis around (6 + 3x) 9 + x + 6 + 3x + (7x) = 180 Reorder the terms: 9 + 6 + x + 3x + (7x) = 180 Combine like terms: 9 + 6 = 15 15 + x + 3x + (7x) = 180 Combine like terms: x + 3x = 4x 15 + 4x + (7x) = 180 Combine like terms: 4x + (7x) = 11x 15 + 11x = 180 Solving 15 + 11x = 180 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + 11x = 180 + -15 Combine like terms: 15 + -15 = 0 0 + 11x = 180 + -15 11x = 180 + -15 Combine like terms: 180 + -15 = 165 11x = 165 Divide each side by '11'. x = 15 Simplifying x = 15
| (x^2+2x-2)(x^2+7x-6)= | | 12+4(z-3)=-2z+5 | | -8(n+3)+28=-5n-14 | | 4-5y+5=2y+11-5y | | 40=4(h-87) | | 7x^2+11x=6x^2-28 | | 3/4-1/2=20c-10 | | r^4+r^3s+r^2s^2=0 | | (x^2+7x-3)(x^2+2x-9)= | | 20x=21x-6 | | 7*2=12 | | -5+25x+23x+5=180 | | 0=x^3-1.5x^2-4.5x+0.5 | | 5n-21=-13+3n | | 3h+2=11 | | 5(z-6)+6z=5-4z | | -5+9a=-47+3a | | 3+2.2=7 | | 12-3c=3 | | 3x-11=13+9x | | 15x+5+14x+12=180 | | .5x^2+1.5x+1=0 | | 15x+5+14x+42=180 | | 20-4c=16 | | 67+3x=17+x | | (4x+4)+(4x-1)=155 | | 8n+24-8n-4=20 | | 18-3s=15 | | 10=4s+2 | | 15r^2-23r-14=0 | | -3z+z+3=z+-2z+-1 | | 3=9-3k |