Question

I dont know the answers to this question please tell me the x and y

Answer 1

Answer:

• x = -5
• y = 5

Step-by-step explanation:

• => -7x - 2y = 25

            -4x - 9y = -25

• => 4(-7x - 2y = 25)

             7(-4x - 9y = -25)

• => -28x - 8y = 100

            -28x - 63y = -175

• => 55y = 275
• => y = 5

Now, let's substitute the value of y into the first equation.

• => -7x - 2y = 25
• => -7x - 2(5) = 25
• => -7x - 10 = 25
• => -7x = 35
• => x = -5

Now, let's check our answer to make sure our answer is correct.

Check:

• -4x - 9y = -25
• => -4(-5) - 9(5) = -25
• => 20 - 45 = -25
• => -25 = -25

Hence, this is proved correct.

Hoped this helped.

$BrainiacUser1357$