For every 15 campers at a summer camp there is 1 counselor.

Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.

Anyone know? will mark brainliest if correct!

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15