2x + y = 7
y=x+1
when the expression x+1 is substituted in fory in the first equation, the result is
x + 1 = 7
2x + 1 = 7
3x + 1 = 7

answer; i believe the two groups were irish immigrants and chinese immigrants;

the first action that caused many creek indians to turn against william mcintosh was when mcintosh a) supported the united states during the creek war of 1813–1814. b) attempted to stop the sale of creek land to the u.s. government. c) seized control of over 1,000 acres of land belonging to the creeks.

this is a good question! i'll do some research and come back when i have the answer!