Question

What is the value of x , if y = 2in the given equation ;5x + 2y = 9​

Answer 1

Answer:

Solve the system of equations.

x = 1

y = 2

Step-by-step explanation:

Hope it is helpful....

Answer 2

Explanation

• Given the equation.

$5x + 2y = 9$

with given condition where y = 2.

Therefore, substitute the value of y in the equation.

$5x + 2(2) = 9 \\ 5x + 4 = 9$

• Solve the equation for x-term.

$5x = 9 - 4 \\ 5x = 5 \\ x = \frac{5}{5} \longrightarrow \frac{1}{1} \\ x = 1$

• Check the answer by substituting both x-value and given y-value in the equation.

$5x + 2y = 9 \\ 5(1) + 2(2) = 9 \\ 5 + 4 = 9 \\ 9 = 9 \longrightarrow \bf{true} \: \green{ \checkmark}$

Hence, the value of x is 1.

Answer

$\large{x = 1}$