Solve 1+(3+42-6)2-(5-7)2

$$1+(3+42-6)2-(5-7)2$$

Evaluate

$$83$$

Solution Steps

Add 3 and 42 to get 45.

$$1+\left(45-6\right)\times 2-\left(5-7\right)\times 2$$

Subtract 6 from 45 to get 39.

$$1+39\times 2-\left(5-7\right)\times 2$$

Multiply 39 and 2 to get 78.

$$1+78-\left(5-7\right)\times 2$$

Add 1 and 78 to get 79.

$$79-\left(5-7\right)\times 2$$

Subtract 7 from 5 to get -2.

$$79-\left(-2\times 2\right)$$

Multiply -2 and 2 to get -4.

$$79-\left(-4\right)$$

The opposite of -4 is 4.

$$79+4$$

Add 79 and 4 to get 83.

$$83$$

Factor

$$83$$