This rectangle has perimeter $$\(20 \mathrm{~cm}\)$$. Find the value of $$\(x\)$$. x= ............................................
Exam No：0580_w21_qp_41 Year：2021 Question No：9(a)
Answer:
\(3.5\) ое
Knowledge points:
E2.5.1 Derive and solve linear equations in one unknown
E5.2 Carry out calculations involving the perimeter and area of a rectangle, triangle, parallelogram and trapezium and compound shapes derived from these.
Solution:
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