Question #6bf03

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Answer 1 · 2018-01-29T23:29:17

Start with 18 and 12.

The sum of 18 and 12 is 30. 18 minus 12 is 6. #18+12=30 => 18-12=6#
I don't know if this will help but here is my answer.

Answer 2 · 2018-01-29T23:40:15

one number is 18 the other is 12

Set up two equations
Let n = one number
Let m = the second smaller number.

# n + m = 30#

# n - m = 6#

Solve the second equation for n

# n - m + m = 6 +m # This gives

# n = m + 6# Now put ( m+6) in for n in the first equation.

# m + 6 + m = 30# using the communicative property gives

# m + m + 6 = 30# adding gives

# 2m + 6 = 30 # subtracting 6 from both sides gives

# 2m + 6 -6 = 30 -6 # which gives

# 2m = 24 # divide both sides by 2

# (2m)/2 = 24/2# so

# m = 12 # the smaller number is 12 now substitute 12 into the second equation.

# n - 12 = 6# add 12 to both sides

# n -12 + 12 = 6 + 12 # this results in

# n = 18 # the larger number is 18

the two numbers are 18 and 12