1.

If 7x + 4 = 25, then x is equal to(a) 29/7 (b) 100/7 (c) 2 (d) 3

Answer»

(d) 3

Consider the given equation 7x + 4 = 25

Transpose 4 to right hand side then it becomes –4

7x = 25 – 4

7x = 21

x = 21/7

x = 3



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