So the sum of 4 times a number (4 times x or 4x) and 7 (+7) is (=) 19 (19)
4x+7=19
subtract 7 from both sdies
4x=12
divide by 4
x=3
the number is 3
Both pairs of opposite sides of parallelogram are adjacent
8x-4y= -8
2x-y=1
-Y=2x-1
Y=2x-1
It makes it easier because you are finding these smallest possible factors that go into 20
Answer:
both are 50 % or 10/20 because there the same number