Question

y=-3/4x+9 y=-1/2x+8 X= y= According to them to problems what’s the X and Y?

Answer 1

Answer:

x = 4

y = 6

Step-by-step explanation:

Step 1: Substitute -3/4(x) + 9 for y in y = -1/2(x) + 8.

• $-3/4(x) + 9 = -1/2(x) + 8$
• $-3/4(x) + 9 +1/2(x) = -1/2(x) + 8 + 1/2(x)$ (add 1/2(x) to both sides)
• $-1/4(x) + 9 = 8$
• $-1/4(x)+9 - 9 = 8-9$ (subtract 9 from both sides)
• $-1/4(x) = -1$
• $-1/4(x) * -4 = -1 * -4$ (multiply both sides by -4)
• $x = 4$

Step 2: Substitute 4 for x in y = -1/2(x) + 8

• $y = -1/2(4) + 8$
• $y = -2 + 8$
• $y = 6$

Therefore, x = 4 and y = 6.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

Answer 2

Your answer is here mate!!!

Y = -3/4x + 9 ...eq( 1 )

Y = -1/2x + 8 ...eq( 2 )

Subsituting eq( 1 ) in eq( 2) we get,

-3/4x + 9 = -1/2x + 8

-3/4x + 1/2x = 8 - 9

-3x + 2x/4 = - 1

- x = -1 * 4

x = 4

Thus, The value of x is 4

Therefore,

Subsituting the value of x in eq(2 )

Y = -1/2 * 4 + 8

Y = -2 + 8

Y = 6

Thus, The value of y is 6

Hence, The value of x and y is 4 and 6 .