Question

If 7x + 15 = 50, then which of the following is the root of the equation? a) -5 b) 7 65 c) 5 d) 5 1

Answer 1

Answer:

c)5

Step-by-step explanation:

7x+15=50

7x=50-15

7x=35

x=35/7

x=5

so, the root of the equation is 5.

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Answer 2

Answer:

c) 5

Step-by-step explanation:

If 7x+15=50 , then which of the following is the root of the equation

c) keep  x=5 in given equation we get,

7(5)+15=50

35+15=50

50= 50

∴ 5 is a root.