Question

3(x+2) + 3(y-3) =7
5x+9y = 8​

Answer 1

Answer:

3x+6+3y-9=7

5x+9y=8

3x+3y=7-6+9=10 -----1

5x+9y=8 ---------2

solving by elimination method-

5*3x+3y=7*5

3*5x+9y=8*5

after this see attachment

Answer 2

Answer:

$3(x+2) + 3(y-3) =7$

$3x+6+3y-9=7$

$3x+3y-3=7$

$3x+3y=10$   --(1st equation)

$5x+9y=8$     --(2nd equation)

Multiplying 1st equation with 3

$9x+9y=30$   --(new 1st equation)

$5x+9y=8$     --(2nd equation)

Subtracting both equations,

$4x=22$

$x = \frac{22}{4} = 5.5$

$5x+9y=8$

$5(5.5)+9y=8$

$27.5+9y=8$

$9y= - 19.5$

$y=-2.16$