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Simplifying -1(7 + -4x) = 7 (7 * -1 + -4x * -1) = 7 (-7 + 4x) = 7 Solving -7 + 4x = 7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 4x = 7 + 7 Combine like terms: -7 + 7 = 0 0 + 4x = 7 + 7 4x = 7 + 7 Combine like terms: 7 + 7 = 14 4x = 14 Divide each side by '4'. x = 3.5 Simplifying x = 3.5
| 114=2u | | f29=7 | | 11x+11=4x+158 | | 42+5x=9-8x | | v+66=993 | | 6*8=0 | | 284-7x=38x+24 | | 7x+2x-3=5x+9 | | q+407=73 | | -19x-21=35-x | | xy=29 | | 20x^2+60x+45=0 | | q+ -407= -73 | | 3x+1=6x-2 | | r+450=996 | | 4-x=15 | | d-732=-485 | | 630-7x=3x | | 3x+69=8x+12 | | 2+(x-7)+1=7 | | -28-7=10x+23 | | x^6=1.4 | | 2+(x-3)+1=7 | | 35=7d | | 11-t=21 | | 40x^2+20x=0 | | 11=m+6 | | 125=20y-5(15-y) | | 370=m-72 | | c+c+2+c+4+c+6=(c+c+2)+10 | | 13x-131=4x-14 | | 359=n+116 |