ch.10 simultaneous equations

Question 1

simultaneous equations

Answer 1

when 2 equations are both satisfied by the same values for x and y, they are said to be simultaneous equations

Question 2

steps for the elimination method

Answer 2

step 1: determine the variable to eliminate first

step 2: make the coefficient of the variable that is to be eliminated same

step 3: determine whether to subtract or add
(sss - same sign, you subtract)
(dsa - different signs, you add)