brenyasanders5345
07.06.2021 •
Mathematics
*Brainliest* What is the value of X?
or how do I solve this equation?
Solved
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Ответ:
x = 6
Step-by-step explanation:
The sum of the angles of a quadrilateral is 360
69+111+12x-3 +111 = 360
Combine like terms
12x+288=360
Subtract 288 from each side
12x+288-288 = 360-288
12x = 72
Divide by 12
12x/12 = 72/12
x = 6
Ответ:
we have
in the numerator, we use the exponent property: to deal with that exponent of 3:
using exponent law we get