404=40z+7(20-z)

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Solution for 404=40z+7(20-z) equation:


404=40z+7(20-z)

We simplify the equation to the form, which is simple to understand 
404=40z+7(20-z)

Reorder the terms in parentheses
404=40z+(+140-7z)

Remove unnecessary parentheses
+404=+40z+140-7z

We move all terms containing z to the left and all other terms to the right. 
-40z+7z=+140-404

We simplify left and right side of the equation. 
-33z=-264

We divide both sides of the equation by -33 to get z. 
z=8

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