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Simplifying 9x + 9 = 7x + 21 Reorder the terms: 9 + 9x = 7x + 21 Reorder the terms: 9 + 9x = 21 + 7x Solving 9 + 9x = 21 + 7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7x' to each side of the equation. 9 + 9x + -7x = 21 + 7x + -7x Combine like terms: 9x + -7x = 2x 9 + 2x = 21 + 7x + -7x Combine like terms: 7x + -7x = 0 9 + 2x = 21 + 0 9 + 2x = 21 Add '-9' to each side of the equation. 9 + -9 + 2x = 21 + -9 Combine like terms: 9 + -9 = 0 0 + 2x = 21 + -9 2x = 21 + -9 Combine like terms: 21 + -9 = 12 2x = 12 Divide each side by '2'. x = 6 Simplifying x = 6
| 6+10x=60+x | | 2x-1=10x-42 | | 2x+17=11x-82 | | -27-2x=13-7x | | 45+30x-48x-60=210-60x | | (x-4)(x+9)= | | -10.5c+7.81=12.69-11.1c-16.82 | | (-9+6)(-6+9)= | | 4x+43=8x+11 | | -10.5c+7.81=12.68-11.1c-16.82 | | y=6x+30 | | -9.8g=-11.11-10.9g | | 13.44+10.2q=-10.64-5.2q+12.6q | | 3(2x+5)=10x-25 | | 16+6x=3x | | -17.6s-13.02=1.72-16.5s | | 2(6m^2)= | | (x+6)(x+9)= | | 11m+3n-2m+10m= | | -0.7u+19.03=-10.4u+15.15 | | -j-19=-3j+13 | | 17-20g+20=-g-20 | | 5(6y-2)=50 | | -18v=13-19v | | M=3n | | -5+9q=8q | | 4(b-6)=44 | | -8+6g=9+9g-2 | | 7+9d=8d | | 7(a+3)=28 | | -10+c=3c+10 | | 4x^2-11x+12=9x+4 |