Select the property of equality used to arrive at the conclusion. if x = 4, then 5x = 20
a)the multiplication property of equality
b)the division property of equality
c)the addition property of equality
d)the subtraction property of equality

The property used "Multiplication property of equality"

A is correct

Step-by-step explanation:

Given: If x = 4, then 5x = 20

We are given an equation x=4

We need to make 5x=20

The coefficient of x in first equation is 1 but in second equation is 5.

So, If we multiply both sides by 5 in x=4 equation

Multiplication property of equality

Hence, The property used "Multiplication property of equality"

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y