Angela has the following coins in her pocket 10p 1p 50p 2p 20p

she pulls out two coins at random

how many different combinations of pairs are there

list all the combinations write all your answers like this(10p, 1p)

you must write all answers on one line

1) the property is   ixi = a ⇔x = a   o x = -a

4(x-5)+3= 15⇒4x-20+3 = 15⇒4x-17= 15⇒4x = 15+17⇒4x = 32⇒x =32/4= 8

4(x-5) +3= -15⇒4x-20 +3 = -15⇒4x-17= -15⇒4x =-15+17⇒4x = 2⇒x =2/4= 1/2

the values are x =8 and x = 0,5

if i knew id you bro,, my bad

i have no clue i hate math i just need the points to get my answers