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Subjects>Math>Math & Arithmetic

Which is a solution for the equation 7x 21 105?

Updated: 10/27/2022

Wiki User

∙ 12y ago

Best Answer

If you mean: 7x+21 = 105

Then the solution is: x = 12

Wiki User

∙ 12y ago

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Q: Which is a solution for the equation 7x 21 105?

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How do you do the work to find the answer to 7x plus 2 equals -19?

Subtract 2 from both sides of the equation: 7x + 2 - 2 = -19 - 2 7x = -21 Divide both sides of the resulting equation by 7: 7x/7 = -21/7 Solution: x = -3 How much is 5x + 15?

How do you do this equation 7x-7 equals 14?

Solution:7x - 7 = 147x = 14 + 77x = 21x = 21/7x = 3Checking:7(3) - 7 = 1421 - 7 = 1414 = 14

7x -21 Can you please help?

28

What number is the solution to the equation 22 equals 7x plus 1?

22=7x+1 (take 1 of each side of the equals) 21=7x (divide each side by seven) 3=x (BAM! answer)

What is the solution of the equation 7x plus 9 equals 51?

7x + 9 = 51 7x = 42 x = 42/7 = 6

Related questions

How do you do the work to find the answer to 7x plus 2 equals -19?

Subtract 2 from both sides of the equation: 7x + 2 - 2 = -19 - 2 7x = -21 Divide both sides of the resulting equation by 7: 7x/7 = -21/7 Solution: x = -3 How much is 5x + 15?

How do you do this equation 7x-7 equals 14?

Solution:7x - 7 = 147x = 14 + 77x = 21x = 21/7x = 3Checking:7(3) - 7 = 1421 - 7 = 1414 = 14

7x -21 Can you please help?

28

What number is the solution to the equation 22 equals 7x plus 1?

22=7x+1 (take 1 of each side of the equals) 21=7x (divide each side by seven) 3=x (BAM! answer)

What are intercepts for 7x-3y equals 21?

If the equation is 7x - 3y = 21 then (3, 0) and (0, -7).

Does the equation 7x-56x 3 have exactly one solution?

It has no solution because without an equality sign it is not an equation.

What is ten x plus fifteen equals seven x minus twenty-one simplified?

10x+15 = 7x-21 10x-7x = -21-15 3x = -36 x = -12 Which is the solution to the above equation when simplified.

What is the solution of the equation 7x plus 9 equals 51?

7x + 9 = 51 7x = 42 x = 42/7 = 6

Is (7 -1) a solution to the equation y -7x?

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What is the solution to this equation 7x-3(x-6)30?

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What is 9x - 4 equals 7x - 6?

This is a linear equation. The value x = -1 is the solution to this equation.

What do you do if the solution is 8x equals 7x?

Because 8 does not = 7, there is no solution. You write No Sol. Alternatively if you simplify an equation to x = x, that would be All Solutions (any number substituted for x satisfies the equation) * * * * * Wrong! 8x = 7x DOES have a solution and that is x = 0

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