3 years ago

Solve for x using cross multiplication. 3x – 5 4 x + 1 x = [?]

Mathematics

2 answers:

Alex3 years ago

7 0

Answer:

x=7

Step-by-step explanation:

3x-5/4=x+1/2

3x-5=2(x+1)

3x-5=2x+2

3x=2x+2+5

3x=2x+7

3x-2x=7

x=7

Pavlova-9 [17]3 years ago

4 0

Step-by-step explanation:

$\frac{3x - 5}{4} = \frac{x + 1}{2} \\ 2(3x - 5) = 4(x + 1) \\ 6x - 10 = 4x + 4 \\ 6x - 4x = 4 + 10 \\ 2x = 14 \\ \: \: \: x = \frac{14}{2} \\ x = 7$

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