45+30-x=12 equation
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The solution
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
Sum and product of roots
[src]
$$63$$
$$63$$
$$63$$
$$63$$