Y = 2bx divide both sides by 2b Y/2b = x
a=2b 4b=6c becomes 2b=3c a=3c
=2b
a + 2b = c a = c - 2b
4
If the shape is a rectangle...We know that the AREA equals BASE x WIDTH ... A equals B*WIf we divide both sides by B we get: W equals A/BWe know that the PERIMETER equals ( 2 x BASE ) + ( 2 x WIDTH ) ... P equals 2B+2WWe can substitute W in the perimeter formula as follows:P equals 2B+2WP equals 2B+(2*A/B)So... if you know the Base and Area, you should now use this new formula to get the Perimeter.
2b + 3 b = 12 . 27 since the beginning is 2 x 12, which equals 24, and then you have to add the extra 3.
This is the same as: 13-2b = 21 -2b = 21-13 -2b = 8 b = -4
If: a = 2b+c Then: a-c = 2b And: b = (a-c)/2
2b-6=20 2b=26 b=26/2 b=13
6
2b=6squared, and 6x6=36