Question

Solve : 3 (x - 1) + 2 (2x + 3 ) = 7​

Answer 1

Answer:

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Step-by-step explanation:

$3 (x - 1) + 2 (2x + 3 ) = 7 \\ = > 3x - 3 + 4x + 6 = 7 \\ = > 7x = 10 \\ = > x = \frac{10}{7}$

Answer 2

Answer:

» 3 (x - 1) + 2 (2x + 3) = 7

» 3x - 3 + 4x + 6 = 7

» 3x + 4x - 3 + 6 = 7

» 7x - 3 + 6 = 7

» 7x - 3 = 7

» 7x = 7 + 3

» 7x = 10

» x = 10/7

» x ≈ 1.428

If we round off 1.428 than the value of x will be 1.43 .

Verification :-

» value of x is 1.43

» 3 ( x - 1) + 2 (2x + 3) = 7

» 3 (1.43 - 1) + 2 (2×1.43 + 3) = 7

» 4.29 - 3 + 2 (2.86 + 3) = 7

» 4.29 - 3 + 5.72 + 3 = 7

» 1.29 - 8.72 = 7

» 7.43 ≈ 7