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Simplifying -3(7 + 3x) = -6x + -3 (7 * -3 + 3x * -3) = -6x + -3 (-21 + -9x) = -6x + -3 Reorder the terms: -21 + -9x = -3 + -6x Solving -21 + -9x = -3 + -6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6x' to each side of the equation. -21 + -9x + 6x = -3 + -6x + 6x Combine like terms: -9x + 6x = -3x -21 + -3x = -3 + -6x + 6x Combine like terms: -6x + 6x = 0 -21 + -3x = -3 + 0 -21 + -3x = -3 Add '21' to each side of the equation. -21 + 21 + -3x = -3 + 21 Combine like terms: -21 + 21 = 0 0 + -3x = -3 + 21 -3x = -3 + 21 Combine like terms: -3 + 21 = 18 -3x = 18 Divide each side by '-3'. x = -6 Simplifying x = -6
| 11-3y=38 | | 2x+10=2x-17 | | 3x-35=10 | | z+12.46=10.4 | | 2x+10=-6x-17 | | 2(0.2x+1)=0.6(2x-10) | | R+3-4r=6 | | 12=2q+6 | | 3x+14=3x-18 | | 4(2x-5)=100 | | -17m-(-7m)=10 | | 10-2(4x+12)=-6x+4 | | 10-15y=-14y | | =123 | | 7r-2r=5 | | 9x-4=2(8+4x) | | 6(x+5)=-54 | | 3(r-10)=12 | | 8(x+4)=8(x+11) | | w+17=25 | | 11q=-14+12q | | -6y+13+9y=8y-3 | | x(-7)+7= | | 3n+14=2n | | 2y+2=-6x+4 | | 14c=13c+13 | | 2x+1-(4-x)=5x-2 | | 8c+-13c=-10 | | 6ab+3ax=3ab | | 8g=10g+8 | | 8=10-r | | -12+10(3+9r)=108 |