Question

please answer fast please answer fast please answer fast please answer fast with explanation​

Answer 1

Answer:

x(-4×7)+(-3×5)=-28+15=43

Answer 2

QUESTION:-

$\bf\;\underline{By\;what\;number\;should\;\frac{-4}{7}\;be\;multiplied\;to\;get\;\frac{-3}{5}\;?}$

EXPLANATION:-

$\sf\;Let\;the\;number\;be\;=y\\\\So,A.T.Q,\\\\\\\leadsto y \times\frac{-4}{7}=\frac{-3}{5}\\\\\leadsto \frac{-4y}{7}=\frac{-3}{5}\\\\\leadsto -21=-20y\;[CROSS\;MULTIPLICATION]\\\\\leadsto y=\frac{21}{20}$

So 21/20 must be multiplied

VERIFICATION:-

$\BF\;\rightarrow \frac{21}{20}\times \frac{-4}{7}=\frac{-3}{5}\\\\\rightarrow \frac{-3}{5}=\frac{-3}{5}\\\\\BF\;HENCE\;\;VERIFIED$