Question

-12(x-5)+7(3-x)=5

Answer 1

=> -12(x-5)+7(3-x)=5

=> -12.x-(-12).5+ 7.3-7.x=5

=> -12x +60+21-7x=5

=> (-12x-7x) + (60+21)=5

=> -19x+ 81=5

=> -19x = 5-81= -76

=> x= -76:(-19)

=> x=4

Answer 2

-12(x-5)+7(3-x)=5

=> -12.x-(-12).5+ 7.3-7.x=5

=> -12x +60+21-7x=5

=> (-12x-7x) + (60+21)=5

=> -19x+ 81=5

=> -19x = 5-81= -76

=> x= -76:(-19)

=> x=4

Tick mk nhé

Answer 3

tick cho mk nha

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