Sagot :
Answer:
x = 4
Step-by-step explanation:
isolate y in first equation
2x + y = 13
y = 13 - 2x
then replace y in the second equation
2x - y = 3
2x - (13-2x) = 3
2x - 13 + 2x = 3
4x = 16
x = 4
Answer:
x = 4
Step-by-step explanation:
isolate y in first equation
2x + y = 13
y = 13 - 2x
then replace y in the second equation
2x - y = 3
2x - (13-2x) = 3
2x - 13 + 2x = 3
4x = 16
x = 4