Question

Solue the equation
find the
value of x andy
7y+10x=-11
4y-3x=-15
​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

{y,x} = {-3,1}

Step-by-step explanation:

[1] 7y + 10x = -11

[2] 4y - 3x = -15

// Solve equation [2] for the variable y

[2] 4y = 3x - 15

[2] y = 3x/4 - 15/4

// Plug this in for variable y in equation [1]

[1] 7•(3x/4-15/4) + 10x = -11

[1] 61x/4 = 61/4

[1] 61x = 61

// Solve equation [1] for the variable x

[1] 61x = 61

[1] x = 1

// By now we know this much :

y = 3x/4-15/4

x = 1

// Use the x value to solve for y

y = (3/4)(1)-15/4 = -3

{y,x} = {-3,1}

where,x=1 and y=-3