math
posted by Gabi .
A rectangle is 4 inches wide by 7 inches long. When the length and width are increased by the same amount, the area is incresed by 26 square inches. What are the dimensions of the new rectangle?

math 
PsyDAG
Let x = the increase.
(4+x)(7+x)  4*7 = 26
Solve for x.
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