Question

Identify the solution of the system of equation
2x+4=0
Y=5-3x

Answer 1

$2x+4=0\\ y=5-3x\\\\ 2x=-4\\ y=5-3x\\\\ x=-2\\ y=5-3x\\\\ y=5-3\cdot(-2)\\ y=5+6\\ y=11\\\\ x=-2,y=11$

Answer 2

$\left \{ {{2x+4=0} \atop {y=5-3x}} \right. \\\\From\ first\ equation:\\2x+4=0\\2x=-4\ \ \ \ |:2\\x=-2\\\\y=5-3\cdot(-2)\\y=5+6=11$