Question

0.34x + 0.17x = 0.864 -0.4x find x answer step by step​

Answer 1

Answer:

0.34x + 0.17x = 0.864-0.4x

0.51x=0.864-0.4x

0.51x-0.4x = 0.864

0.11x = 0.864

x=0.864/0.11

x=432/55

x= 7.85

Answer 2

STEP BY STEP:-

1. We have 2 terms in LHS and both the terms have the variable x. So, let's add those 2 terms. Now we have 0.51x=0.864 - 0.4x

2. We see that out of the 2 terms in RHS there is 1 term with x & 1 term with the same in LHS. So, let's bring the term with x on RHS to LHS.

3. Let's add the terms present on the LHS. After doing so, we get 0.91x=0.864

4. Now, let's leave the x on the LHS & bring the number to the RHS. Let's divide.

5. After dividing, we get 0.949. We can write it as 0.95 also.

Note:

A] While bringing any number from LHS to RHS or vice-versa,

• If the number has -ve sign, while changing it will get a +ve sign.
• If the number has +ve sign, while changing it will get a -ve sign.
• If the number has multiplication sign,it will get division sign.
• If the number has division sign, it will get multiplication sign.

B] While diving if the denominator has a decimal in it, we have to remove the decimal by multiplying both numerator and denominator by the required number of 10s. Example for this point is given in the 2nd image.

C] If the answer for any number after dividing is ongoing, and the third number is more than 5, then roundup the second number and finish the qn. Example for this is given in the 3rd pic.

I hope all these helped you.