Question

c) -6x=-2×3^3 d) -2^2×7^3=7^2×x
va rog mult de tot ​

Answer 1

$c) - 6x = - 2 \times {3}^{3} = > - 6x = - 2 \times 27 = > - 6x = - 54 = > x = 9$

$d) - 2 {}^{2} \times {7}^{3} = {7}^{2} \times x = > ( \frac{2}{7} ) {}^{2} \times {7}^{3} = - x = > \frac{4}{49} \times {7}^{3} = - x = > \frac{4}{ {7}^{2} } \times {7}^{3} = - x = > 4 \times 7 = - x = > 28 = - x = > - x = 28 = > x = - 28.$