Vangie Ooi's answer to Jonatan Abner's Secondary 1 Maths question.

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Vangie Ooi
Vangie Ooi's answer
25 answers (Tutor Details)
1st
1) 128 + x = 180, 2) w + x = 90, 3) 360 - 276 = y, 4) 360 - w - x - y = z