Question 25423
To find the break-even point, set R = C and solve for x.

{{{R = 0.5x}}}
{{{C = 0.3x + 3.5}}}

{{{0.5x = 0.3x + 3.5}}} Simplify and solve for x. Subtract 0.3x from both sides.
{{{0.2x = 3.5}}} Divide both sides by 0.2
{{{x = 17.5}}}

Break-even point is 17.5 tons.