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Simplifying -7x + 2(5x + 9) = 45 Reorder the terms: -7x + 2(9 + 5x) = 45 -7x + (9 * 2 + 5x * 2) = 45 -7x + (18 + 10x) = 45 Reorder the terms: 18 + -7x + 10x = 45 Combine like terms: -7x + 10x = 3x 18 + 3x = 45 Solving 18 + 3x = 45 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + 3x = 45 + -18 Combine like terms: 18 + -18 = 0 0 + 3x = 45 + -18 3x = 45 + -18 Combine like terms: 45 + -18 = 27 3x = 27 Divide each side by '3'. x = 9 Simplifying x = 9
| -18=-(2x+9)-4+x | | -23.79=-24(-.25r) | | 17x+5+30+12x=180 | | x+(10x+4)=180 | | (5-i)(9+3i)=0 | | 12/x=3.14/1 | | (3x+7)+(7y)=180 | | 8q+3p+5= | | -23.79=-24exp(-.25r) | | 7+(3-4x)/5=0 | | -21.5=-9.5(8.5x-3) | | 2x^2+7=61 | | 17x+20=-1 | | 8x+2(x-9)= | | 6(y+1)=3y-21 | | -22=18-1/4x | | 7-x=8-3x | | 36/6(2+2+2)=36 | | 5.5(9x+7.5)=29.5 | | -2y+5/2=-2/5y-4/5 | | 2a/c-d | | 1/3t+7=27 | | 36/6(2+2+2)=1 | | (2/3)+(3k/4)=(7112) | | 2x+5(2x-4)=76 | | 2x+5(x-7)= | | 17.5-8x=-7(7.5x-6.5) | | 0.9t=0.3+0.7t | | -6=-3(k-4) | | 36/6(2+2+2)= | | 43+x=107 | | d/6+3b/8=5/12 |