10
205
a = 20
5x + 20 = 4x +30 5x - 4x = 30 - 20 x = 10
10 plus 20 plus 30plus 40 plus 50 equals 150 because 50 plus 40 equals 90 plus 30 =120+20= 140 then + 10 = 150
18 + 10 + 20 + 30 + 15 + 50= 143
if by thrity equals you mean straight up 30, then the answer is 10.
20 + 6 - 56 = -30
$26.00
20 = 400
The total is 400.
No, 10% + 20% = 0.3 or 30%
-8x - 10 - 20 = -8x - 30