What is 7-5(1)+3(7) ?

The solution to 7-5(1)+3(7) is 23

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7-5(1)+3(7)

7 - 5 (1) + 3 (7)

23

Solution steps

7 - 5 (1) + 3 (7)

Follow the PEMDAS order of operations

Multiply and divide (left to right)

5 (1) : 5

5 (1)

Apply rule:

(a) = a

(1) = 1

= 5 \cdot 1

Multiply the numbers:

5 \cdot 1 = 5

= 5

= 7 - 5 + 3 (7)

Multiply and divide (left to right)

3 (7) : 21

3 (7)

Apply rule:

(a) = a

(7) = 7

= 3 \cdot 7

Multiply the numbers:

3 \cdot 7 = 21

= 21

= 7 - 5 + 21

Add and subtract (left to right)

7 - 5 + 21 : 23

7 - 5 + 21

7 - 5 = 2

= 2 + 21

2 + 21 = 23

= 23

= 23

(- 2)^{2} - (3)^{2}

3 \times + 4 \times + 4 - 7 \times (- 3)

8 1^{2} - 1 9^{2}

(- 3) \times 2 + 2 - 2 (- 3 + 9)

4 + 6 \div 2 - 10 \times 3 - 5