Question

solve each equation and check the answer
7. 13/2+3/2(1-2x) =-4
please tell me answer fast
​

Answer 1

Answer:

To Find:-

• value of x

Solution:-

$\frac{13}{2} + \frac{3}{2} (1 - 2x) = - 4 \\ \frac{13}{2} + \frac{3}{2} - \frac{6x}{2} = - 4 \\ \frac{16 - 6x}{2} = - 4 \\ 16 - 6x = - 4 \times 2 = - 8 \\ - 6x = - 8 - 16 = - 24 \\ x = \frac{ - 24}{ - 6} \\ x = 4$

Verification:-

substituting x=4

$\frac{13}{2} + \frac{3}{2} (1 - 2 \times 4) = - 4 \\ \frac{13}{2} + \frac{3}{2} \times - 7 = - 4 \\ \frac{13}{2} - \frac{21}{2} = - 4 \\ \frac{ - 8}{2} = - 4 \\ - 4 = - 4$

L.H.S=R.H.S

hence verified

Answer 2

Step-by-step explanation:

$\frac{13}{2} + \frac{3}{2} - (1 - 2x) = - 4$

$\frac{13}{2} + \frac{3}{2} - 3x = - 4$

$8 - 3x = - 4$

$- 3x = - 4 - 8$

$- 3x = - 12$

$\frac{ - 3x}{ - 3} = \frac{ - 12}{ - 3}$

$x = 4$

Di verification by substituting 4 where x is found