=>x-5,01=5,52

hay x=10,53

10.53

x-5,01=1,02+3×1,5

x - 5, 01 = 5,52

x = 5,52 + 5,01

x = 10,53

\(\Rightarrow x-5,01=4,02\)

\(\Rightarrow x=4,02+5,01\)

\(\Rightarrow x=9,03\)

x-5,01=7,02-2.1,5

x-5,01=7,02-3

x-5,01=4,02

      x=4,02+5,01

      x=9,03

1) x - 5,01 = 7,02 - 2.1,5

x - 5,01 = 4,02

x = 4,02 + 5,01

x = 9,03

2) x : 2,5 = 1,02 + 3.1,5

x : 2,5 = 5,52

x = 5,52 x 2,5

x = 13,8

a, 

\(\begin{array}{l}x - 5,01 = 7,02 - 2.1,5\\x - 5,01 = 7,02 - 3\\x - 5,01 = 4,02\\x = 4,02 + 5,01\\x = 9,03\end{array}\)

Vậy \(x=9,03\)

b, 

\(\begin{array}{l}x:2,5 = 1,02 + 3.1,5\\x:2,5 = 1,02 + 4,5\\x:2,5 = 5,52\\x = 5,52.2,5\\x = 13,8\end{array}\)

Vậy \(x=13,8\).

1) x - 5,01 = 7,02 - 2.1,5

x - 5,01 = 4,02

x = 4,02 + 5,01

x = 9,03

x-5,01=7,02-3

x-5,01=4,02

x=4,02+5,01

x=9,03

a) 2,(33)-5,01(4)+3,125

=2,333-5,014+3,125

=0,444

b) \(\left(8,21-3,\left(05\right)+1,2\right)\cdot3,\left(1\right)\)

\(=\left(8,21-3,050+1,2\right)\cdot3,111\)

\(=19,78596\)

c) \(\left(1,5+3,\left(5\right)\right):\left(2,1-3,2\right)\)

\(=\left(1,5+3,555\right):\left(-1,1\right)\)

\(=-\dfrac{5,055}{1,1}=-4,\left(5954\right)\)