0.08x+0.07(900-x)=67

Solution for 0.08x+0.07(900-x)=67 equation:

Simplifying
0.08x + 0.07(900 + -1x) = 67
0.08x + (900 * 0.07 + -1x * 0.07) = 67
0.08x + (63 + -0.07x) = 67

Reorder the terms:
63 + 0.08x + -0.07x = 67

Combine like terms: 0.08x + -0.07x = 0.01x
63 + 0.01x = 67

Solving
63 + 0.01x = 67

Solving for variable 'x'.

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

Add '-63' to each side of the equation.
63 + -63 + 0.01x = 67 + -63

Combine like terms: 63 + -63 = 0
0 + 0.01x = 67 + -63
0.01x = 67 + -63

Combine like terms: 67 + -63 = 4
0.01x = 4

Divide each side by '0.01'.
x = 400

Simplifying
x = 400