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You are watching: 7 + 7 / 7 + 7 x 7 - 7
Posted November 3, 2016 By Presh Talwalkar. Read about me, or email me.
Here we go aobtain, another order of operations trouble. This equation has actually been common on Twitter and Facebook and many kind of civilization are puzzled about the correct answer.
7 + 7 ÷ 7 + 7 × 7 – 7 =
In the complying with video I explain the answer and existing two various methods to simplify the expression.
What Is 7 + 7 ÷ 7 + 7 × 7 + 7 Equal To? The Correct Answer Explained
Or save analysis for a text explacountry. . ."All will certainly be well if you usage your mind for your decisions, and mind just your decisions." Due to the fact that 2007, I have actually devoted my life to sharing the joy of game theory and also mathematics. historicsweetsballroom.com currently has over 1,000 totally free short articles through no ads many thanks to community support! Help out and gain at an early stage accessibility to write-ups through a pledge on Patreon.. . . . . . MIND . YOUR . DECISIONS . BY . PRESH . TALWALKAR . . . . The Correct Answer
The correct answer is 50.
One method to check out this is to analyze the expression 7 + 7 ÷ 7 + 7 × 7 – 7 = right into a case around money.
The expression starts with 7, so you start out with $7.
The following part is “+ 7 ÷ 7.” This indicates you acquire a 1/7 share of $7. Since a 1/7 share of $7 is $1, that means you obtain $1. At this allude you have $7 + $1 = $8.
The following component is “+ 7 × 7.” This indicates you gain $7 more, repetitive 7 times. Due to the fact that a $7 times 7 is $49, that suggests you get $49 in full. At this suggest you have actually $8 + $49 = $57.
The last component is “- 7.” That suggests $7 is taken ameans from you. You subtract $7, so you end up via $57 – $7 = $50.
The correct answer is therefore 50.
The expression have the right to additionally be simplified by the order of operations, often remembered by the acronyms PEMDAS/BODMAS.
First evaluate Parentheses/Brackets, then evaluate Exponents/Orders, then evaluate Multiplication-Division, and finally evaluate Addition-Subtractivity.
The expression 7 + 7 ÷ 7 + 7 × 7 – 7 has actually no parentheses or exponents, so we evaluate multiplication and also division.
7 ÷ 7 = 1 7 × 7 = 49
7 + 7 ÷ 7 + 7 × 7 – 7 = 7 + 1 + 49 – 7
Now we deserve to evaluate the enhancement and the subtraction from left to ideal.
= 8 + 49 – 7 = 57 – 7 = 50
The correct answer is 50.
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