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6 September, 12:39

What is - 0.4 (-5-2j) + 0.3j) = -0.2 (-3j + (12) ]+0.6+0.4

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  1. 6 September, 14:20
    0
    j = - 6.8

    Step-by-step explanation:

    Simplify both sides of equation

    -0.4 (-5-2j) + 0.3j=-0.2 (-3j+12) + 0.6+0.4

    (-0.4) (-5) + (-0.4) (-2j) + 0.3j = (-0.2) (-3j) + (-0.2) (12) + 0.6+0.4 (Distribute)

    2+0.8j+0.3j=0.6j+-2.4+0.6+0.4

    (0.8j+0.3j) + (2) = (0.6j) + (-2.4+0.6+0.4) (Combine Like Terms)

    1.1j+2=0.6j+-1.4

    1.1j+2=0.6j-1.4

    Subtract 0.6j from both sides

    1.1j+2-0.6j=0.6j-1.4-0.6j

    0.5j+2=-1.4

    Subtract 2 from both sides

    0.5j+2-2=-1.4-2

    0.5j=-3.4

    Divide both sides by 0.5

    0.5j/0.5 = - 3.4/0.5

    j=-6.8
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