Find the values of x and y
1-2i/ 2+i + 4-i/3+2i = x+iy

and

Step-by-step explanation:

The given complex number equation is:

We simplify the LHS and compare with the RHS

We collect LCD on the left to get:

Simplify to get:

Rationalize the LHS:

Expand the numerator using the distributive property and the denominator using difference  of two squares.

Simplify to get:

By comparing real parts and imaginary parts; we have;

and

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40