Answer:
3
Step-by-step explanation:
As with any other addition fact problem, you can isolate the unknown term by subtracting the unwanted constant.
5/7 +x/6 = 51/42
x/6 = 51/42 -5/7 . . . . . subtract 5/7 from both sides
x/6 = 51/42 -30/42 = 21/42 = 1/2 . . . . . complete the subtraction
x = 6(1/2) = 3 . . . . . . . . multiply by 6
The missing numerator is 3.
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<em>Alternate solution</em>
Multiply the equation by 42:
30 +7x = 51
7x = 51 -30 = 21 . . . . . subtract 30
x = 21/7 = 3 . . . . . . . . divide by the coefficient of x
Answer:
If AB = CD then 5 • AB = 5 • CD
Step-by-step explanation:
The multiplication properly of equality states that if two items have the same value, then you could swap them out and the equation would stay the same.
Answer:
subtracting 14 from sides of the number sentence
Step-by-step explanation:
14 + n = 84
Since 14 is being added to n, you need to subtract 14 from both sides to solve for n.
Answer: subtracting 14 from sides of the number sentence
Answer:
36 ft^2
Step-by-step explanation:
Please mark me as brainiest
Answer:
C is 5x+13 D is 5x+12
Step-by-step explanation:
expand brackets
