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Simplifying 2[8 + -1(-7x + -4)] = 42x + 40 Reorder the terms: 2[8 + -1(-4 + -7x)] = 42x + 40 2[8 + (-4 * -1 + -7x * -1)] = 42x + 40 2[8 + (4 + 7x)] = 42x + 40 Combine like terms: 8 + 4 = 12 2[12 + 7x] = 42x + 40 [12 * 2 + 7x * 2] = 42x + 40 [24 + 14x] = 42x + 40 Reorder the terms: 24 + 14x = 40 + 42x Solving 24 + 14x = 40 + 42x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-42x' to each side of the equation. 24 + 14x + -42x = 40 + 42x + -42x Combine like terms: 14x + -42x = -28x 24 + -28x = 40 + 42x + -42x Combine like terms: 42x + -42x = 0 24 + -28x = 40 + 0 24 + -28x = 40 Add '-24' to each side of the equation. 24 + -24 + -28x = 40 + -24 Combine like terms: 24 + -24 = 0 0 + -28x = 40 + -24 -28x = 40 + -24 Combine like terms: 40 + -24 = 16 -28x = 16 Divide each side by '-28'. x = -0.5714285714 Simplifying x = -0.5714285714
| 3d-9=45 | | hn=n(2n-1) | | n=n(2n-1)h | | n=n(2n-1) | | K+54-9k=21 | | X1/9=5/3 | | 15x+1=10x-1 | | 7x-2(x+6)=13 | | 9k+7=39 | | an=n^2-5n+2 | | 2k-7k-26-3k=-20 | | (1/n)n-1 | | 6x+7x-38=76-6x | | 100x+10y+z=7224 | | -0.11x^2+0.49x+1=0 | | 15a+65= | | (x^(1/3)y^((-1)/2))^6 | | x=4*(0.5) | | b+a=50 | | 2b+2a=100 | | x=3n-3 | | 4b+13=4b-86 | | X^2+5x+60=-2-3 | | 5+4(x+1)=3x-2 | | 18/144 | | (1.20)(2.45)=(4.30/x)(0.0821)(300) | | z+(z^2-5)*z=0 | | 5(4-x)-2x=3-(x-1) | | z+((z^2)-5)*2=0 | | z+(z^2-5)*2=0 | | x-2(x+5)=8-3x | | 55/-14 |