Question

if 3x = y-5 and x = -4, then y=

Answer 1

$3x=y-5\ \ \ \ |+5\\3x+5=y\to y=3x+5\\\\\text{substitute the value of x to the expression}\\\\y=3(-4)+5=-12+5=-7$

Answer: y = -7.

Answer 2

To get the value of x and y using linear equation 3x = y-5 and x = -4, then y= -7

What is a linear equation?

A linear equation has one or two variables. No variable in a linear equation is raised to a power greater than 1.No variable is used as the denominator of a fraction.

A linear equation is defined as an equation that is written in the form of ax+by=c. When solving the system of linear equations, we will get the values of the variable, which is called the solution of a linear equation.

solving this we will get the valve of Y if x is given.

3 x = y-5

if x = -4

⇒3(-4) = y-5

⇒ y = -12 +5

⇒y= -7

Learn more about linear equations here:-https://brainly.com/question/14323743

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