63 :(-0,7)

To divide 63 by -0.7, you can follow these steps:

1. Change the divisor to a whole number: Multiply both the numerator (63) and the denominator (-0.7) by 10 to eliminate the decimal. This gives:

   \[ 63 \div -0.7 = \frac{63 \times 10}{-0.7 \times 10} = \frac{630}{-7} \]

2. Perform the division: Now divide 630 by -7:

   \[ 630 \div -7 = -90 \]

Therefore, \( 63 \div (-0.7) = -90 \).