Question

help me with this please​

Answer 1

plz refer to a app named photomath

Answer 2

$2x + 3y - 7 = 0 \\ 2x = 7 - 3y \: \: \: \: \: \: \: \\ x = \frac{7 - 3y}{2} \: \: \: \: \: \: \: \:$

$3 \times ( \frac{7 - 3y}{2} ) + 2y = 8 \\ \frac{21 - 9y}{2} + 2y = 8 \: \: \: \: \: \: \: \: \: \: \\ \\ \frac{21 - 9y + 4y}{2} = 8$

$21 - 9y + 4y = 16 \\ - 9y + 4y = 16 - 21 \\ - 5y = - 5 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ y = \frac{ - 5}{ - 5} = 1 \: \: \: \: \: \: \: \: \: \:$

$x = \frac{7 - 3y}{2} = \frac{7 - 3}{2} = \frac{4}{2} = 2$

$x = 2 \\ y = 1$