Question 667784
Establish variables
x = $ in mortgage
y = $ in bond
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x+y = 15000
.1x + .06y = 1120
Substitute x into the second equation
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.1(15000-y) + .06y = 1120
1500 - .1y + .06y = 1120
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Group like terms
1500  - 1120 = .1y - .06y
380 = .04y
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Divide both sides by .04
{{{highlight_green(9500)}}} invested in bonds
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x = 15000 - 9500
{{{highlight_green(x=5500)}}} invested in mortgage
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