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Simplifying 7x + 9 = 117 + -5x Reorder the terms: 9 + 7x = 117 + -5x Solving 9 + 7x = 117 + -5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5x' to each side of the equation. 9 + 7x + 5x = 117 + -5x + 5x Combine like terms: 7x + 5x = 12x 9 + 12x = 117 + -5x + 5x Combine like terms: -5x + 5x = 0 9 + 12x = 117 + 0 9 + 12x = 117 Add '-9' to each side of the equation. 9 + -9 + 12x = 117 + -9 Combine like terms: 9 + -9 = 0 0 + 12x = 117 + -9 12x = 117 + -9 Combine like terms: 117 + -9 = 108 12x = 108 Divide each side by '12'. x = 9 Simplifying x = 9
| 6x+1=5x+2 | | x+y+z=440 | | x+2x-100=440 | | 2+(3x-1)/(x)=8 | | (2m^2)-n^2+mn=0 | | 5x-4=2x+20 | | 5+-2=23 | | 2x(7x+8)= | | 1/2(3x+1)=-1 | | 250+8x=610-x | | 21a+8b+3c=600 | | 2x(3x+4x+8)= | | 2r-1=1 | | 10b+25-3b=4b-1 | | 10b+25-3b=4b-1 | | 3/x-6x=7 | | 3(x-2)=15x | | q^2-7q+12=0 | | 4a-3=a+12 | | 4x-3.8=8.2 | | log(2)512=X | | 5t-1=2t+7 | | 6n*2n= | | 5x+10=3(x+8) | | 4200*0.5*(90-t)=400*0.2*(t-20) | | Y=100-x | | 5a=21+2 | | 140*10(20-t)=4200*2(t-100) | | 4200*0.5*(90-T)=400*0.2(T-20) | | 5a-4=9a+16 | | x^5+x^4+x^3-27x^2-27x-27=0 | | 12/52 |