2(y+z)=x make y the subject.

y = x/2 - z

Step-by-step explanation:

We'll "solve 2(y + z) = x for y in terms of x and z"

We wish to isolate y in 2(y + z) = x.

Start by dividing both sides by 2.  We get (y + z) = x/2

Remove the parentheses:                            y + z = x/2

Subtract z from both sides:                            y = x/2 - z

This last result "makes y the subject"

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step-by-step explanation:

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23