Which one is it Which system of linear equations has a solution of
(1, –1)?

y1 and y2
y1 and y3
y2 and y3
y2 and y4

Y’all got to do it all over

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.