Question

three times the sum of a number x and 3 is 10 plus twice the difference of the number x and another number y

Answer 1

Explanation:

We have 3(x + 3) = 10 + 2(x - y).

=> 3x + 9 = 10 + 2x - y

=> x = 1 - y

=> y = 1 - x.

(Rewritting it as a mathematical statement is the 1st line)