Question

0.3a+0.4=0.5-(0.5a-1)​

Answer 1

$0.3a + 0.4 = 0.5 - (0.5a - 1)\\\\0.3a + 0.4 = 0.5 - 0.5a + 1\\\\0.3a + 0.5a = 0.5 + 1 - 0.4\\\\0.8a = 1.5 - 0.4\\\\0.8a = 1.1\\\\a = 1.1/0.8\\\\a = 11/8$

Answer 2

Answer:

a=11/8

Step-by-step explanation:

0.3a+0.4=0.5-(0.5a-1)

0.3a+0.4=0.5-0.5a+1

0.3a+0.5a=0.5+1-0.4

0.8a=1.5-0.4

0.8a=1.1

a =1.1/0.8

a =11/8