For every dollar that Juan gets, Felipe gets $3. They made $3600 , how much did Felipe make? x = Juan's dollar
3x = Felipe's dollars {Felipe gets $3 for Juan's $1} x + 3x = 3600 {added how much each made to be equal to 3600} 4x = 3600 {combined like terms} x = 900 {divided each side by 4} 3x = 2700 {substituted 900, in for x, into 3x} Felipe made $2700  Algebra House
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