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ArbitrLikvidat [17]
3 years ago
8

Solve for x using cross multiplication. 3x - 3 2x – 2 = 5 4 x = [?]

Mathematics
1 answer:
lara31 [8.8K]3 years ago
8 0

Answer:

Step-by-step explanation:

Given

(3x - 3) / 5 = (2x - 2) / 4

Begin by cross multiplying

Solution

  • 4(3x - 3) = 5(2x - 2)                 Use the distributive property to remove brackets
  • 12x - 12 = 10x - 10                    Add 12 to both sides.
  • 12x = 10x - 10 + 12                   Combine the right
  • 12x = 10x + 2                           Subtract 10x from both sides
  • 12x-10x = 2                              Combine the left
  • 2x = 2                                      Divide by 2
  • x = 2/2
  • x = 1

Note: the original equation gives you 0/5 = 0/4   which is 0 = 0.

                       

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