Question

question math genius help but preparation for tmrw math exam
a) 2x-y-3=0,4x+y-3=0
lots of thx if u helped ​

Answer 1

Step-by-step explanation:

make sure to number your equations

$2x - y - 3 = 0 \: \: \: \: \: \: \: \: \: \: \: (1)$

$4x + y - 3 = 0 \: \: \: \: \: \: \: \: \: \: \: \: \: (2)$

In equation 2 make y the subject

$y = - 4x + 3 \: \: \: \: \: \: \: \: \: (3)$

subs 3 into 1

$2x - ( - 4x + 3) - 3 = 0$

$2x + 4x - 3 - 3 = 0$

$6x - 6 = 0$

$6x = 6$

$x = 1 \: \: \: \: \: \: \: \: \: \: \: (4)$

sub's 4 into 2

$4(1) + y - 3 = 0$

$4 + y - 3 = 0$

$y = - 4 + 3$

$y = - 1$