Question

correct answer will be mark brainlist
solve the equation
2x+8y=29
9x+y=14
find x and y..​

Answer 1

Answer:

If 2x+8y=29; 9x+y=14 then x = 83/70 and y = 233/70

Step-by-step explanation:

Given:

2x+8y=29

9x+y=14

Find: x and y

2x+8y=29 ----- (1)

9x+y=14------- (2)

Multiply equation (2) by 8 and subtract

 72x + 8y = 112

- 2x + 8y = 29

__________

70x = 83

x = 83/70

Put value of x in (1) we get

$2(\frac{83}{70} )+8y=29\\\frac{83}{35} + 8y = 29\\8y = 29 - \frac{83}{35}\\8y = \frac{1015 - 83}{35} \\8y = \frac{932}{35}\\y = \frac{932}{35 \times 8} \\y = \frac{233}{70}$

Answer 2

Answer:

x = 83/70 & y = 233/70

Step-by-step explanation:

Step 1: Multiply one, or both, of the equations to set up the elimination of one of the variables. ...

Step 2: Substract the equation (ii) from (i) to eliminate one of the variables.

Step 3: Solve for the remaining variable.

Step 3: Back substitute into either equation or its equivalent equation