Plz answer correctly
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2
Answer:
answer 1. 5
answer 2. 3
Step-by-step explanation:
this is the answer of questions 1st and 2nd
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50
Required Answers:-
We need to find the value of x in each of the questions listed above in the attachment. These are examples of linear equation in one variable.
Cross multiply,
⇒2x - 7 = 1 × 3
⇒2x - 7 = 3
Add 7 in both sides,
⇒2x = 10
Divide 2 in both sides,
⇒x = 5
Add 5 in both sides,
⇒2x + 4 + 5 = 5x
⇒2x + 9 = 5x
Now flip the equation,
⇒5x = 2x + 9
Subtract 2x from both sides,
⇒3x = 9
⇒x = 3
Take the LCM in both sides,
⇒(x + 15)/3 = (x + 8)/2
Cross multiply,
⇒2(x + 15) = 3(x + 8)
Opening the parentheses,
2x + 30 = 3x + 24
Subtract 24 from both sides,
⇒2x + 6 = 3x
Subtract 3x from both sides,
⇒-x + 6 = 0
⇒x = 6
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