a + a + a - 2a = 3a - 2a = a
2a+5a+9a = 16a
2a = 8 + 4aSubtract 8 from each side:2a - 8 = 4aSubtract 2a from each side:-8 = 2aDivide each side by 2:-4 = a
A=2
a = 1
a + a + a - 2a = 3a - 2a = a
2a+5a+9a = 16a
2a = 8 + 4aSubtract 8 from each side:2a - 8 = 4aSubtract 2a from each side:-8 = 2aDivide each side by 2:-4 = a
A equals 20.
a= (+a) or a= (-) b= 2a b= 2a c= (-a) c= (+a)
2a + 3a + 4 = 5a + 4
1
2a+b=2a+b. Without a value for a and b, the expression has no value.
A=2
a = 1
2a+54=38 2a=38-54 2a=-16 a=-16/2 a=-8
2a+12=8 2a=-4 a=-2 So a is -2.