8 - 4x - m = 5x + 30 - 2
8 - 4x - m = 5x + 28
+4x +4x
8 - m = 9x + 28
-8 -8
-m = 9x + 28
Or if you are finding the value of X
-m = 9x + 28
-28 -28
-m - 28 = 9x
Divide both sides by 9
(-m - 28) = x
9
Answer:
£ 170 .
Step by step explanation :
Given that the price of a computer was decreased by 20% to £136. And we need to find the Original price before the decrease. So , let the earlier price be x ,
<u>Decrease in 20 % :- </u>
⇒ Decreased price = 20% of x
⇒ Decreased price = 20/100 × x
⇒ Decreased price = x/5
<u>New price :- </u>
⇒ New price = x - x/5
⇒ New price = 5x - x/5
⇒ New price = 4x/5.
But its given £ 136 , So
⇒ 4x/5 = £ 136
⇒ x = £ 136 * 5/4
⇒ x = £ 170
<h3>
<u>Hence</u><u> </u><u>the</u><u> Original</u><u> price</u><u> </u><u>was</u><u> </u><u>£</u><u> </u><u>1</u><u>7</u><u>0</u><u> </u><u>.</u></h3>
1/5=.20
25%=.25
4 our of 20=.20