Question

8x+5 y = 9 (equation 1)

3x +2y= 4(equation 2)

simultaneous equations

please answer
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Answer 1

Step-by-step explanation:

8x + 5y = 9)-------(1)

3x + 2y = 4)--------(2)

from equation (2)

• 3x + 2y = 4
• 3x = 4 - 2y
• $x = \frac{4 - 2y}{3}$

putting value of X in equation (1),

• 8x + 5y = 9
• $8 (\frac{4 - 2y}{3} ) + 5y = 9$
• $\frac{32 - 8y}{3} + 5y = 9$
• 32 - 8y + 15y = 27
• 32 + 7y = 27
• 7y = 27 - 32
• $y = \frac{ - 5}{7}$

for value of y,

• x = (4 + 1.42)/3
• x = 1.80