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45+30-x=12

45+30-x=12 equation

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Numerical solution:

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The solution

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75 - x = 12
$$75 - x = 12$$
Detail solution
Given the linear equation:
45+30-x = 12

Looking for similar summands in the left part:
75 - x = 12

Move free summands (without x)
from left part to right part, we given:
$$- x = -63$$
Divide both parts of the equation by -1
x = -63 / (-1)

We get the answer: x = 63
The graph
Rapid solution [src]
x1 = 63
$$x_{1} = 63$$
x1 = 63
Sum and product of roots [src]
sum
63
$$63$$
=
63
$$63$$
product
63
$$63$$
=
63
$$63$$
63
Numerical answer [src]
x1 = 63.0
x1 = 63.0
The graph
45+30-x=12 equation