If `(1-3i)(7+5i+i^(2))=a+bi`, what is the value of `a+b`?

If (6+4i)/(1-3i)=a+bi , what is the value of a+b ?

What is the value of (2-3i) +(3+5i)

What is the value of (6+3i) + (2+5i)

If (1-7i)/(2i)^2 = a+ib, then find the value of a and b.

If a+ib=(5+3i)(6i+1) , what is the value of a^(2)+b^(2) ?

If a+bi represents the complex number that result from multiplying 3+2i times 5-i , what is the value of a?

If the expression (1+2i)/(4 + 2i) is rewritten as a complex number in the form of a + bi, what is the value of a ? (Note i=sqrt-1)

(3i +2)/(-i-3) If the expression above is expressed in the form a +bi, where I = sqrt-1, what is the value of b ?

Given z_(1)=1 -i, z_(2)= -2 + 4i , calculate the values of a and b if a + bi= (z_(1)z_(2))/(z_(1))

If i=sqrt(-1), and ((7+5i))/((-2-6i))=a+bi , where a and b are real numbers, then what is the value of |a+b| ?