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Simplifying 9 + -7n = 21 Solving 9 + -7n = 21 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -7n = 21 + -9 Combine like terms: 9 + -9 = 0 0 + -7n = 21 + -9 -7n = 21 + -9 Combine like terms: 21 + -9 = 12 -7n = 12 Divide each side by '-7'. n = -1.714285714 Simplifying n = -1.714285714
| 8cosx+4=4.826 | | 5+3+5=350 | | 351+19+25+20+31+18+25+18+17+15+24+19+24+17+12+15+14+24+25+25+8+12+11+12+8+14+9+14+19+12+13+20+14+12+11+10+16+12+13+10+8+6+10+14+10+5+5+8+6+14+15+5+19+9+11+10+14+21+10+20+9+7+8+5+16+7+7+8+12+8+17+7+7+22+12+12+10+13+14+10+8+10+13+12+16+9+10+20+18+14+8+16+15 | | 351+19+25+20+31+18+25+18+17+15+24+19+24+17+12+15+14+24+25+25+8+12+11+12+8+14+9+14+19+12+13+20+14+12+11+10+16+12+13+10+8+6+10+14+10+5+5+8+6+14+15+5+19+9+11+10+14+21+10+20+9+7+8+5+16+7+7+8+12+8+17+7+7+22+12+12+10+13+14+10+8+10+13+12+16+9+10+20+18+14+8+16+15 | | 12x(5-4)= | | (76)-(-33)= | | D=8(560) | | (94)-(86)= | | t^4+3t^2-2=0 | | (-25)-47= | | 3x^2+18x+-27=0 | | 10/13-5/13 | | f(x)=2x^2+3x+4 | | 10/13-5/14 | | 5y^6*3u^7y^2*2u= | | 6y^2-16xy^3+10x=0 | | tan(x)(tan(x)-1)=0 | | -28x^6-7x^5= | | z-9/8=7/8 | | y-8=-4(x+5) | | x^9xx^2/3 | | 3x+16=7x-14 | | 2x^2-7x=3a | | 1y+6=6y-1 | | 2x^2-7x+3a=0 | | -4+13y+5=6y+32 | | 9z+8=42-17 | | 3.3=6-.045x | | .17x+6-.8x=.27x-.3 | | .06(4h-7)-.05(5h-1)=.8 | | 1/2(a-2)=2/5(2a-3) | | 5y-x=26 |