9h-(h*h-4h+1)=38-h*h

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Solution for 9h-(h*h-4h+1)=38-h*h equation:


Simplifying
9h + -1(h * h + -4h + 1) = 38 + -1h * h

Multiply h * h
9h + -1(h2 + -4h + 1) = 38 + -1h * h

Reorder the terms:
9h + -1(1 + -4h + h2) = 38 + -1h * h
9h + (1 * -1 + -4h * -1 + h2 * -1) = 38 + -1h * h
9h + (-1 + 4h + -1h2) = 38 + -1h * h

Reorder the terms:
-1 + 9h + 4h + -1h2 = 38 + -1h * h

Combine like terms: 9h + 4h = 13h
-1 + 13h + -1h2 = 38 + -1h * h

Multiply h * h
-1 + 13h + -1h2 = 38 + -1h2

Add 'h2' to each side of the equation.
-1 + 13h + -1h2 + h2 = 38 + -1h2 + h2

Combine like terms: -1h2 + h2 = 0
-1 + 13h + 0 = 38 + -1h2 + h2
-1 + 13h = 38 + -1h2 + h2

Combine like terms: -1h2 + h2 = 0
-1 + 13h = 38 + 0
-1 + 13h = 38

Solving
-1 + 13h = 38

Solving for variable 'h'.

Move all terms containing h to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + 13h = 38 + 1

Combine like terms: -1 + 1 = 0
0 + 13h = 38 + 1
13h = 38 + 1

Combine like terms: 38 + 1 = 39
13h = 39

Divide each side by '13'.
h = 3

Simplifying
h = 3

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