Question 8028
Let's use T for the weight of the truck, D for the weight of the driver, and L for the weight of the load.
The first fact says {{{ T+D+L=43320}}}, right?
The second fact says {{{T = 230D}}}
The third fact says {{{L=3D+30}}}
The last two facts can be used to solve the first equation:
{{{230D + D + 3D + 30 = 43320}}} [replaceing T and L with their equals]
{{{234D = 43290}}} [adding up the D's and subtracting 30 from both sides]
{{{D = 185}}} [dividing both sides by 234]
Now we can put this value for D in the last equation:
{{{L=3(185)+30=585}}}
Can you find the weight of the truck (T)? Does it equal 230(185)?