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pashok25 [27]
4 years ago
5

PLZ HELP!! solve this 2 step equation: -243=-9(10+x) 20PTS!!!

Mathematics
2 answers:
notsponge [240]4 years ago
7 0
Answer: x = 17

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
-243-(-9*(10+x))=0 
-243 - (0 - 9 • (x + 10)) = 0
9x - 153  =   9 • (x - 17) 

Equation at the end of step  3  : 9 • (x - 17) = 0 Step  4  

Solve: x-17 = 0
Add  17  to both sides of the equation : x = 17 

One solution was found :  <span>x = 17</span>
MatroZZZ [7]4 years ago
3 0
-243=-9(10+x)

-243=-90-9x
 +90  +90

-153=-9x _______________ divide -9 on both sides

x=17
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