36.6k views
5 votes
Solve: 10(3- x) + 2(x - 2) = 6(2x - 2)

User Luke Tan
by
7.3k points

2 Answers

4 votes
I think I know it.

First, you need to distribute the coefficients to the items in the ()'s

30-10x+2x-4=12x-4

Then you need to carry over the x's on one of the sides.

-10x+10x=0x
12x+10x=22x
2x-2x=0x
22x-2x=20x
30-4=20x-4

Then, move over the -4 to the other side. The point of this is to have all numbers on one side and all variables on the other side, while keeping the equation equal.

-4+4=0
You may want to do 30-4 first before doing the next step.
26+4=30

30=20x

Finally, divide 30 by 20

30/20=1.5

x=1.5

Therefore, X equals 1.5

I spent about 10 minutes on this answer. I really hope this helps!
User Clinton Pierce
by
7.6k points
4 votes
1 Expand
30−10x+2x−4=12x−12

2 Simplify 30−10x+2x−4 to 30−8x−4
30−8x−4=12x−12

3 Simplify 30−8x−4 to −8x+26
−8x+26=12x−12

4 Add 8x to both sides
26=12x−12+8x

5 Simplify 12x−12+8x to 20x−12
26=20x−12

6 Add 12 to both sides
26+12=20x

7 Simplify 26+12 to 38
38=20x

8 Divide both sides by 20
38/20=x

9 Simplify 38/20 to 19/10

10 Switch sides
x=19/10

Decimal Form: 1.9
User Peter MacPherson
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories