Answer:
x = 1
Step-by-step explanation:
Substitute y with 7x.
-5x + 2(7x) = 9
Solve parentheses.
-5x + 14x = 9
Combine like terms.
9x = 9
Now solve the equation.
/9 /9
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maybe it's...
The answer is Claiming standard deduction
I'm pretty sure it is C. Have a great Valentines Day!
Brainleist plzzzzz!