Question

solve the simultaneous equation using the substitution method:

x/2+y/4=5
4x/3+5y/8=13

Answer 1

Q8 of the image

Answer 2

multiply the first equation by 4 and the second equation by 24 and get rid of the fractions

Answer 3

x/2 + y/4 = 5 EQN 1
multiply equation 1 by 4
= 2x +y = 20 = EQN 1a
re arrange EQN 1a
y = 20 - 2x

4x/3 + 5y/8 = 13 EQN 2
sub y = 20 - 2x into EQN 2
4x/3 + 5(y)/8 = 13
4x/3 + 5(20 - 2x)/8 = 13

solve for x

Answer 4

use that x value to solve for y

Answer 5

@harry.g1234 ... how're u going following the above dude...? u ok, want something explained a little clearer...?

Answer 6

Thanks alot i really appreciate your help
its very clear now thanks

Answer 7

@Jack1

Answer 8

sweet as 'slaters