x = 7y/4 + 3/4
y = 4x/7 + 3/7
x = -3y/4 - 7/4
y = -4x/3 - 7/3
-4x + 7y = -3
-4x – 3y = 7
solve using elimination
2 answers
just subtract them:
10y = -10
y = -1
plug that into the first:
-4x + 7(-1) = -3
-4x = -3+7 = 4
x = -1
x = -1, and y = -1
10y = -10
y = -1
plug that into the first:
-4x + 7(-1) = -3
-4x = -3+7 = 4
x = -1
x = -1, and y = -1