The sizes of the angles, in degrees, of a triangle are 3x+103x + 103x+10, 2x−52x - 52x−5 and x+25x + 25x+25

Work out the value of xxx.
Practise OCR GCSE Maths Forming and Solving Equations with exam-style questions for Foundation and Higher tier. 78 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.