Question

solve using cross-multiplication method :
4x+3y=17/3x-4y+6=0​

Answer 1

Answer:

Solve equation [2] for the variable x

[2] 3x = 4y - 6

[2] x = 4y/3 - 2

// Plug this in for variable x in equation [1]

[1] 4•(4y/3-2) + 3y = 17

[1] 25y/3 = 25

[1] 25y = 75

// Solve equation [1] for the variable y

[1] 25y = 75

[1] y = 3

// By now we know this much :

x = 4y/3-2

y = 3