Question 1002681
{{{ (x+5) - 2*( 4x-1 ) = 0 }}}
Use distributive law:
{{{ x + 5 - 8x + 2 = 0 }}}
{{{ -7x + 7 = 0 }}}
Subtract {{{ 7 }}} from both sides
{{{ -7x = -7 }}}
Divide both sides by {{{ 7 }}}
{{{ -x = -1 }}}
Multiply both sides by {{{ -1 }}}
{{{ x = 1 }}}
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check the answer:
{{{ (x+5) - 2*( 4x-1 ) = 0 }}}
{{{ (1+5) - 2*( 4*1-1 ) = 0 }}}
{{{ 6 -2*( 4-1 ) = 0 }}}
{{{ 6 - 2*3 = 0 }}}
{{{ 6 - 6 = 0 }}}
{{{ 0 = 0 }}}
OK