2 x minus 3 Y + 8 is equals to zero 3 X + Y + 1 is equals to zero
i will mark u as a brainlist
Answers
Answer:
X = -1
Y = 2
Step-by-step explanation:
see steps in attachment
GivEn:
- 2x - 3y + 8 = 0
- 3x + y + 1 = 0
To find:
- The value of x and y?
Solution:
• Firstly, Let's find out the value of x by solving the first equation.
⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━━━━⠀
« Finding the value of x,
→ 2x - 3y + 8 = 0
→ 2x - 3y = -8
→ 2x = - 8 + 3y
→ x = 3y - 8/2
⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━━━━⠀
« Finding the value of y by substituting the value of x in eq 2,
→ 3x + y + 1 = 0
→ 3(3y - 8/2) + y + 1 = 0
→ 3(3y - 8/2) + y = -1
→ 9y - 24/2 + y/1 = -1
→ 9y - 24/2 + 2y = -1
→ 9y - 24 + 2y = -1 × 2
→ 11y - 24 = -2
→ 11y = -2 + 24
→ 11y = 22
→ y = 22/11
→ y = 2
⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━━━
« Finding the value of x by substituting the value of y in eq 1,
→ 2x - 3y + 8 = 0
→ 2x - 3(2) + 8 = 0
→ 2x - 6 + 8 = 0
→ 2x + 2 = 0
→ 2x = -2
→ x = -2/2
→ x = -1
∴ Hence, The value of y is 2 and the value of x is -1.