Tim answered all the questions on his math test but got 10 answers wrong. he received 4 points for every correct answer, and there was no penalty for wrong answers. his score was 76 points.

Solve this Equation :

Here "q" is the number of correct answer.

4(q-10)=76

divide both sides by 4

1/4*4(q-10)=76/4

q-10=19

q-10+10=19+10

add 10 to both sides

q=29

So Tim answers correct to 29 questions.

Hope this helps !

Photon