Question

Help me asap plz big ideas math

Answer 1

The answer is x= -3  

( I solve : f(x) = -x+4 . So f(x) = 7 <=> -x+4=7 <=> x = -3 )

Ok done. Thank to me :>

Answer 2

$6.2 = 7$

$- 2..2$

$xy = 6.2. - 2.2 \\ 62 \\ - 22 \\ \ = 40$

$20 - 40 = 20$

$20y = 20y$

$same \: the \: all \: side \: in \: required \: angle \: and \: side$