Hey there! 
7x = 1.35 
DIVIDE 7 to BOTH SIDES 
7x/7 = 1.35/7
CANCEL out: 7/7 because it give you 1
KEEP: 1.35/7 because it give you the x-value 
NEW EQUATION: x = 1.35/7
SIMPLIFY IT! 
x = 0.192857
x ≈ 192,857/1,000,000
Therefore, your answer is: 
x = 0.192857 or x = 192,857/1,000,000
Good luck on your assignment & enjoy your day! 
~Amphitrite1040:)