390=90+42h+195

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Solution for 390=90+42h+195 equation:


Simplifying
390 = 90 + 42h + 195

Reorder the terms:
390 = 90 + 195 + 42h

Combine like terms: 90 + 195 = 285
390 = 285 + 42h

Solving
390 = 285 + 42h

Solving for variable 'h'.

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

Add '-42h' to each side of the equation.
390 + -42h = 285 + 42h + -42h

Combine like terms: 42h + -42h = 0
390 + -42h = 285 + 0
390 + -42h = 285

Add '-390' to each side of the equation.
390 + -390 + -42h = 285 + -390

Combine like terms: 390 + -390 = 0
0 + -42h = 285 + -390
-42h = 285 + -390

Combine like terms: 285 + -390 = -105
-42h = -105

Divide each side by '-42'.
h = 2.5

Simplifying
h = 2.5

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