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2w = 12
w= 6
5y - 2w = 8
5y - 2(6) = 8
5y - 12 = 8
5y = 20
y = 4
2x + 3y + w = 22
2x + 3(4) + 6 = 22
2x + 12 + 6 = 22
2x + 18 = 22
2x = 4
x= 2