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Intermediate June 2017 Unit 2 Q9

WJECIntermediateCurrent spec3 marksSimplifying Basic Expressions

9. Look at the diagram below.
The expression in each circle is found by adding the expressions in the rectangles on either side of the circle.
Complete the diagram by writing expressions in the blank circles and the blank rectangle.
You must simplify your expressions. [3]

Ring of shapes: rectangle 3x + y, circle 4x + 5y, rectangle x + 4y, blank circle, rectangle 4x − y, blank circle, blank rectangle, circle 8x + 3y (back to 3x + y)
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