Question

5×(28+x)=200

x×64+2176=6272

12307-x÷124=11932

100÷x+15=35

Answer 1

5× (28+ x) = 200
140+ 5x=200
5x=200-140
5x=60
x=60:5
x=12


x×64+2176=6272
x×64=6272-2176
x×64=4096
x=4096:64
x=64


12307-x:124=11932
-x:124= 11932-12307
-x:124=-375
-x=-375×124
x=46500



100:x+15=35
100:x=35-15
100:x=20
x=100:20
x=5