Answer:
f(x)=-4
I recommend this math site that could help you with these kind of problems
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Step-by-step explanation:
I hope this helps you
16x+4=110+3x+11
13x=117
x=9
Answer:
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Step-by-step explanation:
9514 1404 393
Answer:
- 6 shirts at $8
- 3 shirts at $7
Step-by-step explanation:
Let x and y represent the numbers of $8 and $7 shirts, respectively. Your system of equations can be written ...
x + y = 9
8x +7y = 69
Subtracting 7 times the first equation from the second gives ...
(8x +7y) -7(x +y) = (69) -7(9)
x = 6
Then y is ...
y = 9 -x = 9 -6 = 3
Amanda bought 6 tees costing $8 and 3 tees costing $7.
Im not 100% sure but i kinda see 156000 as you answer