Question

find the value of 7x+3y when x=12 and y=-6​

Answer 1

Answer:

66

Step-by-step explanation:

To get the values we just have to substitute the number of the value

7x + 3y = 7(12) + 3(-6)

84 - 18 = 66

Answer 2

The required value of  7x+3y when x=12 and y=-6​ is 66.

What are linear equation?

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

Now the given expression is 7x + 3y

Value of the expression be found at x = 12 and y = -6​

now, for required answer putting x = 12 and y = -6​ in the given expression, we get

7x + 3y = 7(12) + 3(-6)

expanding the brackets we get,

7x + 3y = 84 - 18

Solving them we get,

7x + 3y = 66

Hence,the required value of  7x+3y when x=12 and y=-6​ is 66.

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