Answer:
m = 0.75
Step-by-step explanation:
Since (m, 2m + 1 ) is a solution of the equation then substituting the values into the equation will make it true, that is
substitute x = m and y = 2m + 1 into the equation, thus
4m + 2(2m + 1) = 8 ← distribute and simplify left side
4m + 4m + 2 = 8
8m + 2 = 8 ( subtract 2 from both sides )
8m = 6 ( divide both sides by 8 )
m = [tex]\frac{6}{8}[/tex] = [tex]\frac{3}{4}[/tex] = 0.75
