Question 925338
x = hours worked last week
y = hours worked this week
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x + y = 69
y = x + 11
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put the system of linear equations into standard form
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x + y = 69
x - y = -11
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solution:
x = hours worked last week = 29
y = hours worked this week = 40
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how did the problem statement arrive at the equation: 2h + 11 = 69 ???
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h = hours worked last week
y = hours worked this week
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h + y = 69
y = h + 11
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substituting y in the first equation with h + 11:
h + h + 11 = 69
2h + 11 = 69
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solving for h:
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2h = 58
h = 58/2
h = 29
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