Answer:
4
Step-by-step explanation:
2x - 1 = 7
2x = 8
x = 4
Answer:
40 cm
Step-by-step explanation:
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Two lines and a point are guaranteed to be coplanar if the two lines share only a single point.
Hope this helped :)
(-2,-5)
The first goal with equations like these is to get one of the variables to go away. You can do that by adding/subtracting one equation from the other. Then you solve for the one variable. Then you plug that answer into one of the original equations and solve.
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