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Simplifying 5 + -1(-4 + 8i) + -1(-2 + -1i) = 0 5 + (-4 * -1 + 8i * -1) + -1(-2 + -1i) = 0 5 + (4 + -8i) + -1(-2 + -1i) = 0 5 + 4 + -8i + (-2 * -1 + -1i * -1) = 0 5 + 4 + -8i + (2 + 1i) = 0 Reorder the terms: 5 + 4 + 2 + -8i + 1i = 0 Combine like terms: 5 + 4 = 9 9 + 2 + -8i + 1i = 0 Combine like terms: 9 + 2 = 11 11 + -8i + 1i = 0 Combine like terms: -8i + 1i = -7i 11 + -7i = 0 Solving 11 + -7i = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + -7i = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -7i = 0 + -11 -7i = 0 + -11 Combine like terms: 0 + -11 = -11 -7i = -11 Divide each side by '-7'. i = 1.571428571 Simplifying i = 1.571428571
| 3.5-0.9= | | -2x+5=-4x-3 | | 2cos^2(4x)-1=0 | | X^4-x^2=14x^2+16 | | 5n^2-2(7n-3n^2)= | | 8x+7y=2 | | (x^3-4x^2+4x)(2x-3)=0 | | 14+45x=-17 | | 3(2*2)=5 | | (5/2)2 | | 10r-20=3r+8 | | 5(x+-21)+-4=6 | | 9/5*-5 | | =(18x+24)(x-18) | | -539=7(-7x-7) | | log(4)(36)=2 | | log(4)(36)= | | =(18x+24)(x-12) | | -460=10(7x+3) | | -5(4y)-4+4(7y+7)= | | -5(47)-4+4(7y+7)= | | -x+21=30 | | 3x-19=-4x+4 | | 4x(8x+9)=5 | | 10(13+-5x)=470 | | 470=(13+-5x) | | 76-6x=12x+18 | | 10(-5x+13)=470 | | -7(x+2)-10=14+14 | | =(12x+16)(x-12) | | y=7/3 | | y=0.428571428571429000000 |