The sum of two consecutive integers is 57.

if x is the first integer, write and solve an equation to determine both numbers.

what are the two numbers?

If the first integer is x, the second integer must be (x+1) since you know they are consecutive. So you can write:
 
x+(x+1)=57
2x+1=57
2x=56
x = 28 and x+1=29

28+29=57.

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