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Simplifying 6x + (3x + 9) = 90 Reorder the terms: 6x + (9 + 3x) = 90 Remove parenthesis around (9 + 3x) 6x + 9 + 3x = 90 Reorder the terms: 9 + 6x + 3x = 90 Combine like terms: 6x + 3x = 9x 9 + 9x = 90 Solving 9 + 9x = 90 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 9x = 90 + -9 Combine like terms: 9 + -9 = 0 0 + 9x = 90 + -9 9x = 90 + -9 Combine like terms: 90 + -9 = 81 9x = 81 Divide each side by '9'. x = 9 Simplifying x = 9
| Y+3=9 | | -7(d-3)=-4 | | -8u+3=2(-4u-5) | | 5(2+y)+2=77 | | 7x+6=3x-8 | | 12+-2b=12 | | -4.6x+4=-1.5x-2.2 | | 0.25x^2-15x=0 | | 0.6(x^2)-21x+180=0 | | -6(x+9)+6=-48 | | 2v-7v=-14+9 | | 4x^2+6=22 | | x^2-290x-90200=0 | | b(5b+3)-1=b^2+3(b+5) | | (4/3)=y-(2/3) | | 3.2-1.7+5.5=10 | | A-6a-9=30 | | a+2b=12 | | 5x+21=0 | | 2(4x-22)=-28 | | 2a+11/3=a+5 | | 4x+6=2x+7 | | 8X+22=4X+74 | | 2x+8=6x+(-12) | | -7=-3u+11 | | 2y-2=2-3y+6 | | -10x-3+2(5+6x)-9x-3-(1-x)=0 | | 8-9X=203-44X | | -15y-30=-5(3y+6) | | 6x-7=24x+5 | | x-(1/5)=(1/8) | | 9(a+3)=30a |