If (-7,y ) is a solution to the equation 2x -7y = 42, what is the value of y?
i don't think this problem is worded right or something?

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )