Answer:
42
Step-by-step explanation:
n=42
solve a solution to n
7:n = 2:12
a : b = c ; d of proportional expression equals to a × d = b × c
7 × 12 = n × 2
MULTIPY 7 and 12
84 = n × 2
Simplify the expression
84 = 2n
Move the variable to the left-hand side and change the symbol
84 - 2n = 0
Move the constant to the right side and change the sign
-2n = -84
Change the sign of both sides of the equation
2n = 84
Divide both sides by the same number
n = 42
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Answers & Comments
Answer:
42
Step-by-step explanation:
Answer:
n=42
Step-by-step explanation:
solve a solution to n
7:n = 2:12
a : b = c ; d of proportional expression equals to a × d = b × c
7 × 12 = n × 2
MULTIPY 7 and 12
84 = n × 2
Simplify the expression
84 = 2n
Move the variable to the left-hand side and change the symbol
84 - 2n = 0
Move the constant to the right side and change the sign
-2n = -84
Change the sign of both sides of the equation
2n = 84
Divide both sides by the same number
n = 42