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Simplifying (5 + -9i) + (2 + 7i) = 0 Remove parenthesis around (5 + -9i) 5 + -9i + (2 + 7i) = 0 Remove parenthesis around (2 + 7i) 5 + -9i + 2 + 7i = 0 Reorder the terms: 5 + 2 + -9i + 7i = 0 Combine like terms: 5 + 2 = 7 7 + -9i + 7i = 0 Combine like terms: -9i + 7i = -2i 7 + -2i = 0 Solving 7 + -2i = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2i = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2i = 0 + -7 -2i = 0 + -7 Combine like terms: 0 + -7 = -7 -2i = -7 Divide each side by '-2'. i = 3.5 Simplifying i = 3.5
| 5xy+3yz-4xz-5xy= | | 0.1x-2.7=0.5(x-5) | | 4n+5n+3n=135 | | 11x+6x=-20+13x-12 | | 4(5x-9)=-216 | | 4x+8=108 | | 9x+95x+50=0 | | 10=2(z+1) | | -8.4(x-4.25)=33.6 | | 4=7-3(4x+1) | | -1/3q^2 | | -19=28-k | | (x+2)+x+162=360 | | 3b^2+11b+6=0 | | 1+7x=64 | | -1/4t^2 | | y-1=0.67(x+7) | | (4b-5)(5b+8)= | | 6+1.5x=13.5 | | y-33=-45 | | 6+1.5x=3.5 | | 3x-3=9+4x | | 7(5x+5)=350 | | 0.25x-2.45=0.5(x-5) | | .333*.333*.333= | | 6-x=-11 | | 2(4x-9)=-98 | | x=2x+10+50 | | X+8y=139.69 | | 7x+7=9x+9 | | 6y/y^2-m^2-6m/m^2-y^2 | | 4x+4=168 |