Answer:
System 1
Step-by-step explanation:
Tbe elemination method of solving system of equation works on such a way that :
Given two set of equation (1) and (11) having two unknowns, the Coefficient are of one of the unknowns, either x or y is the same such that applying the addition or subtraction operation of the two equations eliminates one of the unknown variables leaving us with only one unknown variable to solve, and then using this solution to solve for the other variable.
In the question given. The variable setup for elimination is the x variable such that by using the addition operation, variable x is eliminated.
