Kate1678
22.10.2019 •
Mathematics
Solving systems of equations by substitution -2x-3(6-11)=-7
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Ответ:
11
Step-by-step explanation:
Simplify both sides of the equation.
Subtract 15 from both sides.
Divide both sides by -2.
x = 11
Ответ:
To find the angle of any regular polygon you find the number of sides , which in this example is . You then subtract from the number of sides yielding . Take and multiply it by degrees to yield a total number of degrees in the regular nonagon. Then to find one individual angle we divide by the total number of angles .
hope i helped