1. Simplifying
4 + 6.5x = 36.5
Solving
4 + 6.5x = 36.5
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4' to each side of the equation.
4 + -4 + 6.5x = 36.5 + -4
Combine like terms: 4 + -4 = 0
0 + 6.5x = 36.5 + -4
6.5x = 36.5 + -4
Combine like terms: 36.5 + -4 = 32.5
6.5x = 32.5
Divide each side by '6.5'.
x = 5
Simplifying
x = 5
2. x in (-oo:+oo)
12-((3/5)*x) = 39 // - 39
12-((3/5)*x)-39 = 0
(-3/5)*x-39+12 = 0
-3/5*x-27 = 0 // + 27
-3/5*x = 27 // : -3/5
x = 27/(-3/5)
x = -45
x = -45
