Question

(5+x) * 7 =81-4

ai làm xog mik tick,cho cả cách làm nha

 

Answer 1

(5+x) * 7 =81-4

<=>(5+x)*7=77

<=>5+x=77:7=11

<=>x=11-5=6

Answer 2

\(\left(5+x\right)\times7=81-4\)

\(\left(5+x\right)\times7=77\)

\(5+x=77:7\)

\(5+x=11\)

\(x=6\)

Answer 3

(5+x) x7  = 81-4 
(5+x) x7 = 77 
(5+x) = 11 
x= 6 

Answer 4

( 5 + X ) x7 = 81 - 4 

= ( 5 + X ) x 7 = 77

= ( 5 + X ) = 77 : 7

=5 + X = 11

X = 11 - 5         X=6