Question 127501
Given to solve:
.
{{{ 9-(3x-2) = 21}}}
.
Begin by removing the parentheses. Since the parentheses are preceded by a negative sign
if you remove them you change the signs of the terms inside. This leads you to getting:
.
{{{9 - 3x + 2 = 21}}}
.
On the left side combine the 9 and the + 2 to get 11 and this makes the equation:
.
{{{-3x + 11 = 21}}}
.
Get rid of the +11 on the left side by subtracting 11 from both sides and you then have:
.
{{{-3x = 10}}}
.
Solve for x by dividing both sides by -3 and the answer becomes:
.
{{{x = 10/(-3) = -10/3}}}
.
Hope this helps you to understand the problem.
.