Pls solve this simultaneous step by step :
3a + 2b = 6
3b - 2a =10

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.