Question 684132
x = first six months
y = second six months
...
x + y = 1450
x = y - 130
...
Substitution
y - 130 + y = 1450
2y - 130 = 1450
2y = 1450 + 130
2y = 1580
{{{highlight_green(y = 790)}}}
...
x = 790-130 
{{{highlight_green(x = 660)}}}

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