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Simplifying 6(7k + 26.6) + -30.9 = 309.3 Reorder the terms: 6(26.6 + 7k) + -30.9 = 309.3 (26.6 * 6 + 7k * 6) + -30.9 = 309.3 (159.6 + 42k) + -30.9 = 309.3 Reorder the terms: 159.6 + -30.9 + 42k = 309.3 Combine like terms: 159.6 + -30.9 = 128.7 128.7 + 42k = 309.3 Solving 128.7 + 42k = 309.3 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-128.7' to each side of the equation. 128.7 + -128.7 + 42k = 309.3 + -128.7 Combine like terms: 128.7 + -128.7 = 0.0 0.0 + 42k = 309.3 + -128.7 42k = 309.3 + -128.7 Combine like terms: 309.3 + -128.7 = 180.6 42k = 180.6 Divide each side by '42'. k = 4.3 Simplifying k = 4.3
| 1/3x-1=9 | | lg(x+2)(2x+7)-6=-4 | | 4x^2-11x+1=1 | | 4(x-5)=9x+5 | | 4x-3.2=3.2 | | 20b^2+13br-15r^2= | | (6x-5)(2x-3)= | | (a-3)(4a+9)=0 | | (3y+1)+(6x-13)+(8x-61)=180 | | 3x+36=8x-24 | | 8x-8=16+6x | | 54.6=42.3+4.1t | | 3m/2n=6 | | 4y-2=13-y | | 3a^2+16a+10=0 | | 2x+10-6(x-2)=0 | | g+2g=70 | | 15y^2+21y-18= | | 2/4=y/8 | | 6x-3=15x+8 | | 3a^2+16+10=0 | | (5h+4)(3h+6)= | | 3.9=r^2 | | 4c^2+4c-1=0 | | (9x+1)+(11x-23)=180 | | -5(x+3)-14=10+1 | | 3(x+30)=5x-30 | | 18=10-8(x-2) | | 3a^2+2b-6a+ab= | | 2m+5=10m | | (13y+5)-(2y+2)= | | 3x^2+12x+9=30 |