Answer
x = 800
Work Step by Step
0.1x + 0.12(1700-x) = 188
Multiply both sides by 100 to clear the equation of all decimals.
10x + 12(1700-x) = 18800
Use the distributive property.
10x + 20400 - 12x = 18800
-2x = 18800 - 20400
-2x = -1600
Divide both sides by -2.
x = 800