solve substitution the root of 3x-5= 7 is x=4
Answers
Answered by
107
3x-5=7 ........................(i)
putting x=4 in LHS of (i) we get
LHS=3*4-5
=12-5
=7
LHS= RHS
4 is the root of the equation.
putting x=4 in LHS of (i) we get
LHS=3*4-5
=12-5
=7
LHS= RHS
4 is the root of the equation.
Answered by
19
Answer:
x=4
Step-by-step explanation:
if we use trial and error method
x. LHS. RHS
2. 3×2 - 5 = -2. 7
4. 3×4 - 5 = 7. 7
6. 3×6 - 5 = 13. 7
Thus , x = 4
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