simplify (3'10+3'7 ) ×3'-5
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when there is no sign before the number there is Plus.
+ - = -
- + = -
+ + = -
- - = +
Step-by-step explanation:
(3'10+3'7 ) ×3'-5
= ( +3'+10+3'+7 ) ×3'-5
= ( 13 + 3 + 7 ) × 3 - 5
= ( 16 + 7 ) × 3 - 5
=
=
=
=
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