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Simplifying 9x + 2 = 2x + 21 Reorder the terms: 2 + 9x = 2x + 21 Reorder the terms: 2 + 9x = 21 + 2x Solving 2 + 9x = 21 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 2 + 9x + -2x = 21 + 2x + -2x Combine like terms: 9x + -2x = 7x 2 + 7x = 21 + 2x + -2x Combine like terms: 2x + -2x = 0 2 + 7x = 21 + 0 2 + 7x = 21 Add '-2' to each side of the equation. 2 + -2 + 7x = 21 + -2 Combine like terms: 2 + -2 = 0 0 + 7x = 21 + -2 7x = 21 + -2 Combine like terms: 21 + -2 = 19 7x = 19 Divide each side by '7'. x = 2.714285714 Simplifying x = 2.714285714
| 9-b=1-b | | 17+f=26 | | 8(2n+3)=10n-6+4n | | 2/310=5/c | | 5m^2=180m^4 | | a+41=60 | | 2(3y+5)=4y-4 | | 16+w=29 | | 16x^2+81y^2=0 | | 10x+18=-7x-24 | | 6x^2-45x+81=0 | | 3+3K=-9+6K | | -3x/3=7x-1 | | 1.3x-7=15 | | 13x^2+9y^2-6x^2= | | 2(x-4)+3(x-5)=2x-2 | | -7(N-4)=3(1-4N) | | 1.2x+9=30 | | lx-1l=8 | | O+O+1+2O+2=55 | | 6(z-2)+7z-2= | | 173=80-x | | S=0.171t-0.53 | | -5=-3+y | | 4(4R-1)+1=109 | | -v+159=11 | | 4m+8m= | | -7(4a)-6a(5)= | | x=20(12/5) | | 4x-36=24+x | | 7a^2-10a^2+9a= | | x+.30=1.19 |