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Popular >

30-9x=-7x+21

Solution

30 - 9 x = - 7 x + 21

Solution

x = \frac{9}{2}

+1

Decimal Notation

x = 4.5

Solution steps

30 - 9 x = - 7 x + 21

Move

30

to the right side

- 9 x = - 7 x - 9

Move

7 x

to the left side

- 2 x = - 9

Divide both sides by

- 2

x = \frac{9}{2}

Popular Examples

solvefor X,(5X-2Y)=21 solve for

X, (5 X - 2 Y) = 21

- 3 x + 15 = - 3 + 12 - x

9 - 3 k = 17 - 2 k

solvefor x,6x-4y=18 solve for

x, 6 x - 4 y = 18

solvefor x,3x+5y=29 solve for

x, 3 x + 5 y = 29

Frequently Asked Questions (FAQ)

What is the answer to 30-9x=-7x+21 ?
The answer to 30-9x=-7x+21 is x= 9/2
Solve for x: 30-9x=-7x+21
The solution is x= 9/2