Question

Solve the pair of linear equation using method of elimination by substitution.
2x+1/7 + 5y-3/3 =12

3x+2/2 - 4y+3/9 =13

Pleeeeeeessssssseeeeee help me

Answer 1

Heya

Here's your answer!!!
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Equation simplified:

[1] 2x+5y=90/7
[2] 3x-4y=11

// to remove fraction, multiply equations by their respective LCD

Multiply equation [1] by 7

// Equations now take the shape:

1) 14x+35y=90
2) 3x - 4y = 11

// Solve equation [2] for the variable x

2) 3x = 4y+11
2) x = 4y+11/3

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

1) 14•(4y/3+11/3)+35y = 90
1) 161y/3 = 116/3
1) 161/y = 116

// solve equation [1] for the variable y

[1] 161y = 116
[1] y = 116/161

// by now we know this much

x = 4y/3 + 11/3,
y = 116/161

// use the y value to solve for x

x = (4/3)(116/161)+11/3 = 745/161

= (x,y) = [745/161, 116/161]
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GLAD HELP YOU.
It helps you,
thank you ☻
@vaibhav246

Answer 2

Hola User______________

Here is Your Answer...!!!!
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☆Actually welcome to the concept of the Linear equations in two variables....

☆Basically after solving ...we might get .....
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Hope it helps u....☺