# An engineer

An engineer and five technicians on an oil rig together earn \$14208 per month, whilst three engineers and nine technicians together earn \$28800 per month. Find how much an engineer and how much a technician earns per month.

e =  2688
t =  2304

### Step-by-step explanation:

e+5t = 14208
3e+9t = 28800

e+5•t = 14208
3•e+9•t = 28800

e+5t = 14208
3e+9t = 28800

e = 2688
t = 2304

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