Question

Solve the system of equations using the substitution method. ​ ​ x = −2 2x + 5 = y

Answer 1

$\text{Solve by plugging -2 to x:}\\\\\text{We know this by the question identifies what the value of x is}\\\\2(-2)+5=y\\\\\text{Solve:}\\\\2(-2)+5=y\\\\-4+5=y\\\\\boxed{1=y}$

Answer 2

Answer:

y = 1

Step-by-step explanation:

$x=-2\\2x+5=y$

$2(-2)+5=y\\-4+5=y\\1=y$