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Last updated at Nov. 12, 2021 by Teachoo
Ex 6.3,4 Find (b) (– 13) + 32 – 8 – 1(−13) + 32 − 8 − 1 = −13 − 8 − 1 + 32 Taking − common = − (13 + 8 + 1) + 32 = − (13 + 9) + 32 = − 22 + 32 = 32 − 22 = 10