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Simplifying (7 * 3) + -1n = 9 Multiply 7 * 3 (21) + -1n = 9 21 + -1n = 9 Solving 21 + -1n = 9 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + -1n = 9 + -21 Combine like terms: 21 + -21 = 0 0 + -1n = 9 + -21 -1n = 9 + -21 Combine like terms: 9 + -21 = -12 -1n = -12 Divide each side by '-1'. n = 12 Simplifying n = 12
| 9/5•42 | | Logb(6x^4)-7logb(x)=0 | | 8a^2-98=0 | | 4÷102/3 | | 4/3(-12=160 | | -5(7-6b)=-6b-35 | | 3=19.5 | | jk=6 | | 9x+2=6x+29 | | 1x+7=-152 | | ((15c^-7d^3)/35c^5d^7)) | | 6.7=0.14t+1.53 | | 7t+9=4t | | (X-4)x(x-9)=0 | | -4d-4=8 | | -0.25+2-3.5= | | x+(x-60)=90 | | 8-3(c)=31 | | 35+x(0.25)=60+x(0.05) | | (-16,-15)/(19,-7) | | 12x-8=10x+22 | | 2(r)+15=-17 | | 6.2n-3.7=85+45 | | H=16t^2+484 | | 4/7=x/42 | | 5e+15=5+12x | | 4d+4=8 | | 18-20b=-18-9b-19 | | 2k-10=42 | | 2x-3.24=-1.1 | | 3(-1)-9/5=y | | x-1/2=1/12 |