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Simplifying 4(x + 2) + -2(x + 3) = 42 Reorder the terms: 4(2 + x) + -2(x + 3) = 42 (2 * 4 + x * 4) + -2(x + 3) = 42 (8 + 4x) + -2(x + 3) = 42 Reorder the terms: 8 + 4x + -2(3 + x) = 42 8 + 4x + (3 * -2 + x * -2) = 42 8 + 4x + (-6 + -2x) = 42 Reorder the terms: 8 + -6 + 4x + -2x = 42 Combine like terms: 8 + -6 = 2 2 + 4x + -2x = 42 Combine like terms: 4x + -2x = 2x 2 + 2x = 42 Solving 2 + 2x = 42 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 2x = 42 + -2 Combine like terms: 2 + -2 = 0 0 + 2x = 42 + -2 2x = 42 + -2 Combine like terms: 42 + -2 = 40 2x = 40 Divide each side by '2'. x = 20 Simplifying x = 20
| 6cos(3x)-3=0 | | 9x-14=39 | | x=187-0.22x | | X^2-8X-792=0 | | 2(7b-6)+-4=12 | | (4x-3)(3x-8)= | | 1/9=x/5.5 | | -4(2s+5)-s=25 | | -4(-2t+8)=-6(t-18)+12t | | 13r-28=9r+32-2(r+6) | | (X+21)=147 | | 22.5x=203*1.5 | | (13x+x^2)-(x+13)=0 | | 22.5x=203*2 | | 5x-(12ax)/(-3x) | | 13r-28=9r | | 5.5x=49.6*4.5 | | 12-16x=4+12x | | -5(3c)=30-6(c+8) | | 3(2x-5)=-12 | | 4n+24+3n+23= | | (x+4)(x-6)-(x+3)(x-7)= | | 22.5x=203*5 | | 6x^2+8=-2x | | 5t-4=2t+8 | | -11+x=0 | | 5(2x+9)=25 | | 5.5x=49.6*2.5 | | 7/16×5/13 | | 2(7b+6)-4=12 | | W+7w=48 | | 7inx-4=7 |