Question 669385
Armando works part-time at a pet store. This week he earned $18 less than 4 times the amount he earned last week. His total earnings for the two weeks were $262. How much did he earn this week?
-------
Let his earnings this week be "x".
Let his earnings last week be "y".
----
Equations:
x = 4y-18
x + y = 262
----------------
Substitute for "x" and solve for "y":
4y-18 + y = 262
5y = 280
y = $56 (last week earnings)
----
Solve for "x":
x + y = 262
x + 56 = 262
x = $206 (this week earnings)
==================================
Cheers,
Stan H.