Solve the system for each variable.

2x + y + 4z = 3 and x + 2y = 2z - 3 and 4z + 3y = 0

Mp model with mathematics explain how the number of text messages dario sent and the cost form an arithmetic sequence.then write an expression to find dario's text messaging bill if he sends n text messages over 250.

If chord ab is congruent to chord cd, then what must be true about ef and eg?

W-16=-12 solve each one step equation plz