Question

3x+2y=29,5x-y=18 substitution method

Answer 1

Answer:

answer for the given problem is given

Answer 2

Answer:

The answer should be x=5 and y=7

Step-by-step explanation:

Given Equations:

$3x + 2y = 29 \: \: \: \: \: \: \: \: .....eq.1$

and

$5x - y = 18$

or

$5x - 18 = y$

or

$y = 5x - 18 \: \: \: \: \: \: \: .....eq.2$

on substituting value of y from eq. 2 in eq. 1

we get,

$3x + 2(5x - 18) = 29$

$3x + 10x - 36 = 29$

$13x - 36 = 29$

$13x = 36 + 29$

$13x = 65$

$x = 5$

On substituting value of x from above eq. in

eq. 2

we get,

$y = 5x - 18$

$y = 5(5) - 18$

$y = 25 - 18$

$y = 7$

Thus,

Answer should be x=5 and y=7.

Hope this helped you.

Thank you.