Subtract 4x from both sides of the first equation:
y = 3
Substitute 3 for y in the second equation:
5x + 9 = 7
Subtract 9 from both sides of the equation:
5x = -2
Divide both sides of the equation by 5:
x = -0.4
4x+y=7
5x+3y=7
2 answers
What a lot of gobble-de-goup by the bot !
corrected solution:
from the first: y = 7 - 4x
sub this into the 2nd,
5x+3y=7
5x + 3(7 - 4x) = 7
5x + 21 -12x = 7
-7x = -14
x = 2 , then in y = 7-4x , y = -1
x = 2
y = -1
corrected solution:
from the first: y = 7 - 4x
sub this into the 2nd,
5x+3y=7
5x + 3(7 - 4x) = 7
5x + 21 -12x = 7
-7x = -14
x = 2 , then in y = 7-4x , y = -1
x = 2
y = -1