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Hunter-Best [27]
3 years ago
5

What is the value of x in this equation: 4x+5=3x+4​

Mathematics
2 answers:
zavuch27 [327]3 years ago
6 0
Move everything to one side, it becomes negative
3x+4-4x-5
=-x-1
chubhunter [2.5K]3 years ago
3 0

Answer:

x=-1

4*-1+5=3*-1+4

1=1

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luda_lava [24]


We have area of the rectangle:


fg=120


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\frac 1 2 f \times 3 = 135-120


Solve away:


f = \frac 2 3(15) = 10


g= \dfrac{120}{f}=12


Answer: f=10, g=12


Check: trapezoid area


A = \frac 1  2(12+15)10 = 5(27)=135 \quad\checkmark



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3 years ago
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