3.5*2.25=x

Solution for 3.5*2.25=x equation:

Simplifying
3.5 * 2.25 = x

Multiply 3.5 * 2.25
7.875 = x

Solving
7.875 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
7.875 + -1x = x + -1x

Combine like terms: x + -1x = 0
7.875 + -1x = 0

Add '-7.875' to each side of the equation.
7.875 + -7.875 + -1x = 0 + -7.875

Combine like terms: 7.875 + -7.875 = 0.000
0.000 + -1x = 0 + -7.875
-1x = 0 + -7.875

Combine like terms: 0 + -7.875 = -7.875
-1x = -7.875

Divide each side by '-1'.
x = 7.875

Simplifying
x = 7.875