Answer:
28 is your answer.
Step-by-step explanation:
Let:
Eric = x = 38
Tyson = y = 24
Lane = z
Set the equation:
x + y + z = 90
Plug in the corresponding numbers for the corresponding variables:
(38) + (24) + z = 90
Simplify. Combine like terms.
(38 + 24) + z = 90
62 + z = 90
Isolate the variable z. Note the equal sign, what you do to one side, you do to the other. Subtract 62 from both sides.
z + 62 = 90
z + 62 (-62) = 90 (-62)
z = 90 - 62
z = 28
28 is your answer.
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