Question 1010617
Jack: x
Jill: y
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x = y+4 we'll use this value for x next
x+5+y+5= 58 Substitute for x:
y+4+5+y+5= 58
2y+14= 58 subtract 18 on both sides
2y= 44 divide both sides by 2
y= 22 Jill is 22 And Jack is 4 years older
x= 22+4= 26
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check:
In 5 years the sum of their ages  will be 58:
(22+5)+(26+5)=
27+31= 58 We have the right answer