45+3{34-18-14}÷3[17+3×4-(2×7)]
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Answer=
=45+3{2}/ 3{17+3×4-14
= 45+6 /3{17+12-14}
= 51 / 3{29-14}
= 51 /3{15}
= 51 /45
= 17/15
step-by-step=
45+3{34-18-14}÷3[17+3×4-(2×7)]
=45+3{34-4}÷3[17+3×4-14]
=45+3{30}÷3[17+12-14]
=45+3{30}÷3[15]
=45+90÷45
=45+2
=47
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