"The difference" tells you that you'll be subtracting.
10 - u
Step-by-step explanation:
open brackets
5z+20-13=2z+19
5z+7=2z+19
3z=12
z=4
Answer:
x = 18
Step-by-step explanation:
Total interior angle of pentagon: 540 degrees
(3x + 23) + (9x - 6) + 95 + 90 + (7x - 4) = 540
19x + 23 - 6 + 95 + 90 - 4 = 540
19x + 17 + 95 + 90 - 4 = 540
19x + 13 + 185 = 540
19x + 198 = 540
19x = 342
x = 18
Answer:
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Step-by-step explanation:
