Anyone knows this ans? I will mark them BRAINLIEST... The one who ans first and gives complete ans...thanks for helping!

Answer: a.5r-7=2r+8
We move all terms to the left:
5r-7-(2r+8)=0
We get rid of parentheses
5r-2r-8-7=0
We add all the numbers together, and all the variables
3r-15=0
We move all terms containing r to the left, all other terms to the right
3r=15
r=15/3
r=5
a) r = 5
b) t = 5/3
c) a = 1
d) x = 0
How to solve an eqution:
Equation solving is So easy you just need to follow the instructions.
i) First arrange the no. in one side and variable in one side.
ii) The sign will change if we change the no. or variable between equal =. Like + change into - and × change into ÷ .
iii) Use the BODMAS and just go ahead.
Solution:
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