Answer:
x = (y - 7)/2
Step-by-step explanation:
from the question given y=2x+7 , so we are to find the value of x now we first make x the subject of the formulae from y=2x+7
y=2x+7............. equation 1
y- 7 = 2x
divide both sides by 2
(y-7)/2= 2x/2
x = (y - 7)/2
to check if your answer is correct
put the value of x in to equation 1
y=2x+7............. equation 1
y = 2[ (y-7)/2] + 7
y = y - 7 + 7
y = y.......... proved
