Answer:
7x=12
Step-by-step explanation:
8x+5=6x+19
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5
8x=6x+14
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6x
2x=14 Divided by 2 Equals x=7
Small triangle : (1,4), (3,1), (3,4)
The x: (3,2)
The big triangle: (-3,3), (-1,5), (-2,1)
(For the big triangle that is only correct if the black dot is the mirror line)
Answer:
Variable = x
Coefficient = 2
Constant = 7
A variable is an unknown that holds an unknown value.
A coefficient is a number that multiplies something.
A constant is a fixed number.
Hope This Helps :)
-16t^2+400=0
16t^2=400
take square root on both sides.

4t=20
t=20/4
t=5