Respuesta :

altavistard

Answer:

30

Step-by-step explanation:

Start with 2x + 3y = 12.  Substitute -16 for y, obtaining 2x + 3(-16) = 12.  Simplify this and then solve the resulting equation for x:

2x - 48 = 12, or 2x = 60.

Dividing both sides by 2 results in x = 30.

(30, -16) is a solution of  2x + 3y = 12.

Hence x=30 in 2x+3y=12,

What is an equation?

An Equation is placement of numbers and variables in such way that it satisfies values of x and y.

How to solve?

Given equation 2x+3y=12, also given the (x,-16)

In order to obtain value for x we will put values in equation.

Hence 2x=12-3y⇒2x=12-3(-16)=12+48=60

2x=60⇒x=30

Hence x=30 in 2x+3y=12,

Learn more about equations

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