a) X-5 = 5-X
x+x = 5+5
2x = 10
x=5
b) X+6 = 7-X
2x = 7-6
2x =1
x= 1/2
c) 10 + a = 20 - a
a+a =20 - 10
2a=10
a=5
d) 30 + 5b - 3b = b + 40
30 + 2b = b + 40
2b - b=40 - 30
b= 10
e) 10w - 5w + 10 - 7 = 6w - 2w - 10 + 20
5w + 3 = 4w + 10
5w - 4w = 10 - 3
w= 7
Coronita pls <3
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a) X-5 = 5-X
x+x = 5+5
2x = 10
x=5
b) X+6 = 7-X
2x = 7-6
2x =1
x= 1/2
c) 10 + a = 20 - a
a+a =20 - 10
2a=10
a=5
d) 30 + 5b - 3b = b + 40
30 + 2b = b + 40
2b - b=40 - 30
b= 10
e) 10w - 5w + 10 - 7 = 6w - 2w - 10 + 20
5w + 3 = 4w + 10
5w - 4w = 10 - 3
w= 7
Coronita pls <3