4. Simplify:
a) 260 = 5 of [50 - {16 + (24 = 4 -1)}]
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solution:
REMOVE BRACKETS
260= 5 of [50-{16+(24=4-1)}]
260= 5 of [50-{16+(24=3)}]
260= 5 of [50-{16+21}]
260= 5 of [50-{37}]
260= 5 of [50-37]
260= 5 of [13]
260= 5 of 13
260= 39
221
is it right???
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