Question

a. 6(x+2^3)+40=100

b. 2^2(x+3^2)-5=55

Answer 1

giải giúp mình nha

Answer 2

a, \(6\left(x+2^3\right)+40=100\)

\(6\left(x+2^3\right)=100-40\)

\(6\left(x+2^3\right)=60\)

\(x+2^3=60\text{ : }6\)

\(x+8=10\)

\(x=10-8\)

\(x=2\)

Answer 3

a, \(6\left(x+2^3\right)+40=100\)

\(6\left(x+2^3\right)=100-40\)

\(6\left(x+2^3\right)=60\)

\(x+2^3=60\text{ : }6\)

\(x+8=10\)

\(x=10-8\)

\(x=2\)

Answer 4

a) 6(x + 2³) + 40 = 100

6(x + 8) + 40 = 100

6(x + 8) = 100 - 40

6(x + 8) = 60

x + 8 = 60 : 6

x + 8 = 10

x = 10 - 8

x = 2

b) 2²(x + 3²) - 5 = 55

4(x + 9) - 5 = 55

4(x + 9) = 55 + 5

4(x + 9) = 60

x + 9 = 60 : 4

x + 9 = 15

x = 15 - 9

x = 6

Answer 5

a) 6(x+2³)+40=100

6(x+8)+40=100

6(x+8)=100-40

6(x+8)=60

x+8=60:6

x+8=10

x=10-8

x=2

Answer 6

\(a,6\left[x+2^3\right]+40=100\)

=> \(6\left[x+8\right]+40=100\)

=> 6x + 48 + 40 = 100

=> 6x = 100 - 40 - 48 

=> 6x = 12

=> x = 12 : 6 = 2

b, \(2^2\left[x+3^2\right]-5=55\)

=> \(4\left[x+9\right]-5=55\)

=> 4x + 36 - 5 = 55

=> 4x + 36 = 55 + 5

=> 4x + 36 = 60

=> 4x = 60 - 36

=> 4x = 24

=> x = 24 : 4 = 6

Answer 7

a)6(x+2³)+40=100

   6(x+8)        =100-40

    6(x+8)       =60

=>x+8            =60:6

=>x+8             =10

                 =>x=10-8

                 =>x=2

b)2²(x+3²)-5=55

    4(x+9)      =55+5

    4(x+9)      =60

=>x+9          =60:4

=>x+9          =15

           =>x   =15-9

           =>x   =6

Answer 8

a ) 

= 2

b) 

=6

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Answer 9

a ) 2

b ) 6

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