2x+4y=18
4x+2y=9
plz answer fast
Answers
Answer:
x = 0, y = 4.5
Step-by-step explanation:
[2x+4y=18]×2
=> 4x + 8y = 36
Thus, on subtracting both the equations, 4x gets cancelled, and as result, we get,
8y - 2y = 36-9
=> 6y = 27
=> y = 27/6
=> y = 4.5
=> x = 9 - 2*4.5
=> x = 9-9
=> x = 0
Answer:
Simplifying
4x + 2y = 9
Solving
4x + 2y = 9
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2y' to each side of the equation.
4x + 2y + -2y = 9 + -2y
Combine like terms: 2y + -2y = 0Simplifying
4x + 2y = 9
Solving
4x + 2y = 9
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2y' to each side of the equation.
4x + 2y + -2y = 9 + -2y
Combine like terms: 2y + -2y = 0
4x + 0 = 9 + -2y
4x = 9 + -2y
Divide each side by '4'.
x = 2.25 + -0.5y
Simplifying
x = 2.25 + -0.5y
4x + 0 = 9 + -2y
4x = 9 + -2y
Divide each side by '4'.
x = 2.25 + -0.5y
Simplifying
x = 2.25 + -0.5y
Simplifying
4x + 2y = 9
Solving
4x + 2y = 9
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2y' to each side of the equation.
4x + 2y + -2y = 9 + -2y
Combine like terms: 2y + -2y = 0
4x + 0 = 9 + -2y
4x = 9 + -2y
Divide each side by '4'.
x = 2.25 + -0.5y
Simplifying
x = 2.25 + -0.5y