2a+54=38 2a=38-54 2a=-16 a=-16/2 a=-8
2a 4 is the same as saying 2*a*4, so if you plug 2 in for a, this equals 16
If its 2a=8 then a= 4 If a=8 then a2=16 If 8=D then 8=====================================D
a + a + a - 2a = 3a - 2a = a
A = 36 mi2, h = 12 mi, b = ? mi A = (bh)/2, multiply by 2 to both sides 2A = bh, divide by h to both sides (2A)/h = b, substitute A and h respectively with 36 and 12 (2*36 mi2)/(12 mi) = b, simplify b = 6 mi
2a+54=38 2a=38-54 2a=-16 a=-16/2 a=-8
2a 4 is the same as saying 2*a*4, so if you plug 2 in for a, this equals 16
16 + x = 36x = 36 - 16 = 2016 + 20 = 36
If its 2a=8 then a= 4 If a=8 then a2=16 If 8=D then 8=====================================D
a + a + a - 2a = 3a - 2a = a
A = 36 mi2, h = 12 mi, b = ? mi A = (bh)/2, multiply by 2 to both sides 2A = bh, divide by h to both sides (2A)/h = b, substitute A and h respectively with 36 and 12 (2*36 mi2)/(12 mi) = b, simplify b = 6 mi
16
-4 + 2A = 12 - 15A + A-4 + 2A = 12 - 16A2A = 12 - 16A + 42A = 16 - 16AA = 8 - 8A
16/36 equals 4/9
6
4
It is 2a - 16.