Question

ajutatima va rog cu ecuatiile 2x+3=57 3x-5=79 2*x+4=68 (x-7)/6=13 4x+3=19 va rog foarte tare frumos

Answer 1

$a) \\ 2x+3=57 \\ 2x=57-3 \\ 2x=54 \\ x=\frac{54}{2} \\ x=27 \\ b) \\ 3x-5=79 \\ 3x=79+5 \\ 3x=84 \\ x= \frac{84}{3} \\ x=28 \\ c) \\ 2x+4=68$
$2x=68-4 \\ 2x=64 \\ x=\frac{64}{2} \\ x=32$
$d) \\ \frac{x-7}{6}=13 \\ x-7=13*6 \\ x-7=78 \\ x=78+7 \\ x=85 \\ e) \\ 4x+3=19 \\ 4x=19-3 \\ 4x=16 \\ x= \frac{16}{4} \\ x=4$