Question

solve the equation of all sums​

Answer 1

Answer:

i. 1/2

ii.4

iii.8

iv.-2

Step-by-step explanation:

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Answer 2

Answer: & Step-by-step explanation:

$1)\frac{x+1}{2x+3}=\frac{3}{8}\\\\ =>8x+8=6x+9\\\\=>8x-6x=9-8\\\\=>2x=1\\\\=>x=\frac{1}{2}$

$2)\frac{5x+4}{7x+4}=\frac{3}{4}\\\\ =>20x+16=21x+12\\\\=>21x-20x=16-12\\\\=>x=4$

$3) \frac{x-5}{3}=\frac{x-3}{5}\\\\ =>5x-25=3x-9\\\\=>5x-3x=25-9\\\\=>2x=16\\\\=>x=8$

$4)\frac{t-3}{5}=\frac{2t+1}{3}\\\\ =>3t-9=10t+5\\\\=>10t-3t=-9-5\\\\=>7t=-14\\\\=>t=-2$

In all these cases we only use cross multiplication.

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