Solve 10-9x^2+4x=-6x^2

What is the value of x in the following equation? -3x-2=2x+8

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)