Question

find the value of y. Given that y=3x and x+7 =5​

Answer 1

Answer:

y = -6

Step-by-step explanation:

x + 7 = 5

x = 5 - 7 = -2

y= 3x = 3 × -2

y = -6

Answer 2

Answer:

$y = 3x \\ x = \frac{y}{3}$

$x + 7 = 5 \\ x = -7 + 5 \\ \frac{y}{3} = -2 \\ y = 3 \times -2 \\ y = -6$

$\huge\purple{\fbox{\sf{y \: = \: -6}}}$