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Simplifying 3(x + 9) + 2(3x + 4) = 7(x + 11) Reorder the terms: 3(9 + x) + 2(3x + 4) = 7(x + 11) (9 * 3 + x * 3) + 2(3x + 4) = 7(x + 11) (27 + 3x) + 2(3x + 4) = 7(x + 11) Reorder the terms: 27 + 3x + 2(4 + 3x) = 7(x + 11) 27 + 3x + (4 * 2 + 3x * 2) = 7(x + 11) 27 + 3x + (8 + 6x) = 7(x + 11) Reorder the terms: 27 + 8 + 3x + 6x = 7(x + 11) Combine like terms: 27 + 8 = 35 35 + 3x + 6x = 7(x + 11) Combine like terms: 3x + 6x = 9x 35 + 9x = 7(x + 11) Reorder the terms: 35 + 9x = 7(11 + x) 35 + 9x = (11 * 7 + x * 7) 35 + 9x = (77 + 7x) Solving 35 + 9x = 77 + 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. 35 + 9x + -7x = 77 + 7x + -7x Combine like terms: 9x + -7x = 2x 35 + 2x = 77 + 7x + -7x Combine like terms: 7x + -7x = 0 35 + 2x = 77 + 0 35 + 2x = 77 Add '-35' to each side of the equation. 35 + -35 + 2x = 77 + -35 Combine like terms: 35 + -35 = 0 0 + 2x = 77 + -35 2x = 77 + -35 Combine like terms: 77 + -35 = 42 2x = 42 Divide each side by '2'. x = 21 Simplifying x = 21
| 17x-7=3+12x | | x^2+3x+4+x^2-6=0 | | -7x+4y=42 | | -7x+4y=42 | | 2.7p-4=1.5p+2 | | (a-5)(a+2)=0 | | 7-(3x-1)=5x | | b-7+2b=28 | | 9r=-17(r-52) | | ln(x-1)+ln(x-1)=3 | | .25p-5n=12 | | y^2+23y-24=0 | | ny^2+5y+6=0 | | 5x+7+3(x-7)=0 | | x^3-15r^2+54r=0 | | 9r=-17(r+52) | | 8x^3-4x^2+6x+2= | | ln(x-2)+ln(3x-2)=7 | | 18n^3+33n^2-6n=0 | | 6(ab)(ab)=0 | | -9X+2=-4X+9 | | 2(x+3)=3x-5(x+1) | | -4+14+2n=26 | | 1b-20=-9b | | y^2+2y+23=0 | | (3x^2+1)(3x^2-1)= | | 3n+3.6=7.2 | | (2y^2-1)(2y^2+1)= | | (a^2+6)(a^2-6)= | | 3(1+t)+5=3(1+t)-7 | | x^2+xy-42y^2=0 | | (5x-3x)-(-4x+6)=(8x+11)-(3x-6) |