if x= a, and y=b, is the solution of equation x-y=2 and x+y=4, then find the values of a and b, respectively

x = 3, y = 1

Step-by-step explanation:

x + y = 4 1

x - y = 2 2

From 2:

x = 2 + y 3

Sub 3 into 1 :

(2 + y) + y = 4

2y =2

y =1 4

Sub y = 1 into 3

x = 2 + 1

x = 3

step-by-step explanation:

this woman was an important writer and propagandist during the american revolution. she was a member of the committee of correspondence (in fact the committee was formed in her home) and was an advisor to many of the revolutionary leaders, including george washington and john adams. who was this revolutionary woman?

111

step-by-step explanation: