Answer:
x= -2
Step-by-step explanation:
9(x-1)=7x-13 1) do distributive property
9x-9=7x-13 2) add nine to both sides which means you would take out the 9 since -9 and 9 cancel out each other and add 9 to -13
9x=7x-4 3) subtract 7x from both sides which means you would remove the 7x since -7x and 7x cancel out each other and subtract 7x from 9x
2x=-4 4) divide both sides by 2
x= -2
Sorry if this was confusing
The answer to the question
Answer:
126
Step-by-step explanation:
Hope it helped :)
9514 1404 393
Answer:
(c) ∠ECF and ∠BCF
Step-by-step explanation:
Complementary angles total 90°. Here, 90° angle BCE is divided by ray CF into two complementary angles. They necessarily have a total of 90°.
∠ECF and ∠BCF