Question

what is the number 4 is subtracted from the sum of 4 and 7 multiplied by one fourth of 20 ​

Answer 1

Answer:

x=96

PREMISES

1/4x-4=20

CALCULATIONS

1/4x-4=20

4[(1/4)x-4=20] (Sometimes eliminate fraction(s) to simplify operations)

x-16=80

x-(16–16)=80+16

x-0=96

x=

96

PROOF

If x=96, then the inverse of the expression 1/4x-4=20 returns

x=(20+4)4

96=24×4 and

96=96 establishes the root (zero) x=96 of the expression 1/4x-4=20 in the premises

Answer 2

=[{(7x4)+(7x1)+20}]-4

=[{28+7+20}]-4

=[{35+20}]-4

=55-4

=51

Hence, 51 is the correct answer.