Question

50 points
Solve and give correct answer or if it wrong Ans I'll report ​

Answer 1

Step-by-step explanation:

given

$a)x + y =8 - - - - - - - (1) \\ x - y = 2 - - - - - - - - (2) \\ \\ add \: equation \: 1 \: and \: 2 \\ \\ wue \: get \\ \\ \: \: \: \: x + y = 8 \\ + x - y = 2 \\ - - - - - - - - \\ 2x = 10 \\ x = \frac{10}{2} \\ x = 5 \\ \\ put \: x = 5 \: in \: equation \: 1 \\ x + y = 8 \\ 5 + y = 8 \\ y = 8 - 5 \\ y = 3$

for b

$- 2x + 4y = 22 - - - - - - (1) \\ \: \: \: 2x + y = 13 - - - - - - (2) \\ \\ add \: eqation1 \: and \: 2 \\ \\ \: - 2x + 4y = 22 \\ + 2x + y = 13 \\ - - - - - - - - \\ 5y = 45 \\ y = \frac{45}{5} \\ y = 9 \\ \\ put \: y = 9 \: in \: equation \: 2 \\ \\ 2x + y = 13 \\ 2x + 9 = 13 \\ 2x = 13 - 9 \\ 2x = 4 \\ x = \frac{4}{2} \\ x = 2$

Answer 2

Answer:

a)x+y=8−−−−−−−(1)

x−y=2−−−−−−−−(2)

addequation1and2

wueget

x+y=8

+x−y=2

−−−−−−−−

2x=10

x=

2

10

x=5

putx=5inequation1

x+y=8

5+y=8

y=8−5

y=3