Question

Is X = 3, y = 4 a solution of the linear equation 4x + 3y - 30= 0 ? write another solution for 4x + 3y-30 = 0

Answer 1

no it's not the solution of that linear
the another solution can be X=3 and y=6

Answer 2

Answer:

NO,

x = 3 and y =6 Another solution.

Step-by-step explanation:

x = 3, y = 4 is not a solution of the linear equation 4x + 3y - 30= 0 because when we put the value of x = 3, and y = 4 in this equation we don't get equal to zero.

LHS

$=4x + 3y - 30 ~~~~~~~~~~~~~~~[put~~ x=3~ and ~y=4]\\\\=4(3) + 3(4) -30\\\\=12 +12-30\\\\=-6$

RHS = 0

LHS is not equal to RHS.

Another solution,

$4x + 3y-30 = 0\\\\4x + 3y =30\\\\put ~~x = 3\\\\4(3) + 3y = 30\\\\3y=30-12\\\\3y=18\\\\y = \frac{18}{3}\\ \\y=6$

now we get RHS= LHS

So, x = 3 and y =6 is a solution of the linear equation 4x + 3y - 30= 0