Question

x-452=77+48;

x+58=64+58

x-1-2-3-4=0

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Answer 1

x - 452 = 77 + 48

x - 452 = 125

        x = 125 + 452

        x = 577

x + 58 = 64 + 58

x + 58 = 122

        x = 122 - 58

        x = 64

x - 1 - 2 - 3 - 4 = 0

                   x = 0 + 1 + 2 + 3 + 4

                  x = 10

Answer 2

a) x-452=77+48

x-452=125

x=125+452

x=577

Vay x=577

b)x+58=64+58

x+58=122

x=122-58

x=64

Vay x=64

c)x-1-2-3-4=0

x=0+4+3+2+1

x=10

Vay x=10

Answer 3

    x - 452 = 77 + 48 

=) x - 452 = 125

=) x   = 125 + 452 

=) x   = 577

    x + 58 = 64 + 58 

=) x + 58 = 122

=) x   = 64

    x - 1 - 2 - 3 - 4 = 0

=) x - 1 - 2 - 3 = 4

=) x - 1 - 2 = 4 + 3 

=) x - 1 - 2 = 7 

=) x - 1 = 7 + 2

=) x - 1 = 9 

=) x = 9 + 1 

=) x = 10