-42=4.5+p

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Solution for -42=4.5+p equation:


Simplifying
-42 = 4.5 + p

Solving
-42 = 4.5 + p

Solving for variable 'p'.

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

Add '-1p' to each side of the equation.
-42 + -1p = 4.5 + p + -1p

Combine like terms: p + -1p = 0
-42 + -1p = 4.5 + 0
-42 + -1p = 4.5

Add '42' to each side of the equation.
-42 + 42 + -1p = 4.5 + 42

Combine like terms: -42 + 42 = 0
0 + -1p = 4.5 + 42
-1p = 4.5 + 42

Combine like terms: 4.5 + 42 = 46.5
-1p = 46.5

Divide each side by '-1'.
p = -46.5

Simplifying
p = -46.5

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