What is the solution of 5 x + 1] + 6 = 21?
x = -2 or x = 4
X
=
4
x
=
2
x = -4 or x = 2

What are “like terms”? why can we only add like terms?

The variable in a relation who’s value depends on the value of the independent variable is called what?

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36