messagelynn messagelynn

01-10-2020
Mathematics

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-2 (-x + 4) + 4x - 3 = 31

2 x 4 4x 3 31 class=

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CHERLYNnotCHERRY CHERLYNnotCHERRY

01-10-2020

Answer:

The value of x is 7.

Step-by-step explanation:

First, you have to expand the brackets and then, solve it :

[tex] - 2( - x + 4) + 4x = 31[/tex]

[tex]2x - 8 + 4x - 3 = 31[/tex]

[tex]6x - 11 = 31[/tex]

[tex]6x = 31 + 11[/tex]

[tex]6x = 42[/tex]

[tex]x = 42 \div 6[/tex]

[tex]x = 7[/tex]

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