0.5(2.1x-3)=0.6(3.1+8)

Solution for 0.5(2.1x-3)=0.6(3.1+8) equation:

Simplifying
0.5(2.1x + -3) = 0.6(3.1 + 8)

Reorder the terms:
0.5(-3 + 2.1x) = 0.6(3.1 + 8)
(-3 * 0.5 + 2.1x * 0.5) = 0.6(3.1 + 8)
(-1.5 + 1.05x) = 0.6(3.1 + 8)

Combine like terms: 3.1 + 8 = 11.1
-1.5 + 1.05x = 0.6(11.1)

Multiply 0.6 * 11.1
-1.5 + 1.05x = 6.66

Solving
-1.5 + 1.05x = 6.66

Solving for variable 'x'.

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

Add '1.5' to each side of the equation.
-1.5 + 1.5 + 1.05x = 6.66 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 1.05x = 6.66 + 1.5
1.05x = 6.66 + 1.5

Combine like terms: 6.66 + 1.5 = 8.16
1.05x = 8.16

Divide each side by '1.05'.
x = 7.771428571

Simplifying
x = 7.771428571