What is 2(3)+7(-1)-2 ?

The solution to 2(3)+7(-1)-2 is -3

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2(3)+7(-1)-2

2 (3) + 7 (- 1) - 2

- 3

Solution steps

2 (3) + 7 (- 1) - 2

Follow the PEMDAS order of operations

Multiply and divide (left to right)

2 (3) : 6

2 (3)

Apply rule:

(a) = a

(3) = 3

= 2 \cdot 3

Multiply the numbers:

2 \cdot 3 = 6

= 6

= 6 + 7 (- 1) - 2

Multiply and divide (left to right)

7 (- 1) : - 7

7 (- 1)

Apply rule

a \cdot (- b) = - a \cdot b

7 (- 1) = - 7 \cdot 1 = - 7

= - 7

= 6 - 7 - 2

Add and subtract (left to right)

6 - 7 - 2 : - 3

6 - 7 - 2

6 - 7 = - 1

= - 1 - 2

- 1 - 2 = - 3

= - 3

= - 3

- (- 4)^{2} + 1

1^{2} + 0^{2} + 1 + 0^{2}

(1 \div 3) - 1

\frac{479}{2 ^{4} \cdot 5 ^{2}}

- 4 + {- 5 - [5 + 3 - 1 (+ 5 - 8) + 6] - 3}