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Subjects>Math>Algebra

What is 3x-3 equals 7x 21?

Updated: 4/28/2022

Wiki User

∙ 11y ago

Best Answer

If: 3x-3 = 7x+21

Then: x = -6

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∙ 11y ago

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Continue Learning about Algebra

Solve for y 7x plus y equals 4?

7x + y = 4y = 4 - 7x

7x - 2y equals -2?

Impossible!

What does -7x-24 equals -129?

129

What is the answer to 5x plus 8 equals 7x?

7x-5x=8 2x=8 x=4

Simplify 7x plus 5x equals?

It is: 12x

Related questions

What is the answer to7x equals 21?

If 7x = 21, then x=3 !

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

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

11x -21 equals 7x plus 3 What is x?

11x - 21 = 7x + 3 4x = 24x = 6

What is X in X-3-7X equals 21?

x-3-7x=21 -6x=21+3 6x=-24 x=-4

How do you solve -21-4x equals 9-7x?

-21-4x=9-7x 7x-4x=9+21 3x=30 x=30 / 3 therefore x=10

What is 7x plus 3y equals 21 a negative or positive slope?

y=mx+b 7x+3y=21 3y=21-7x *****_ y=7-2.3x *****_ m= -2.3 negative

If x equals 3 and y equals 2 then 7x plus 5y equals?

7x + 5y 7(3) + 5(2) 21 + 10 = 31

-3x equals -21 plus 4x?

-3x=-21+4x-3x-4x=-21+4x-4x-7x=-217x=217x/7=21/7x=3

What is the orderedpair for 9x-3y equals 63 and 7x-3y equals 45?

9x-3y=63 7x-3y=45 -3y=63-9x -y=21-3x y=-21+3x 7x-3(-21+3x)=45 7x+63+9x=45 7x+9x=45-63 16x=-18 x=-1.125 y=-21+3(-1.125) y=-24.375 (-1.125,-24.375)

What is value of x 11x plus 9 equals 7x plus 21?

11x+9=7x+21 11x-7x=4 4x+9=21 21-9=12 4x=12 12 divided by 4= 3 x=3

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)

7 x over 8 plus equals 21 what is x?

7x/8 = 21 so 7x = 21*8 x = 12*8/7 = 3*8 = 24

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