Question

For the pair of linear eqautions in two variable x + 2y = 10 and x = -2 then find the value of y.​

Answer 1

Answer:

sooooooooooooooo sorry.....I have not learnt this

Answer 2

$\large \: x + 2y = 10 \: \: \: \: \: \: \: \: \: \: - - (1) \\ \large{}x = -2$

Here, Putting the known value in equation 1,

$\huge{}x + 2y = 10 \\ \huge{} ( - 2) + 2y = 10 \\ \huge{} - 2 + 2y = 10 \\ \huge{}2y - 2 = 10 \\ \huge{}2y = 10 + 2 \\ \huge{}2y = 8 \\ \\ \huge{}y = \frac{8}{2} \\ \\ \huge{}y = 4$