SOLUTION: Hi can you please help me with These problems step by step
7x - 10 = 12
3x = 9x - 15
4( x - 9) = ( x - 5) + 9
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Question 381515: Hi can you please help me with These problems step by step
7x - 10 = 12
3x = 9x - 15
4( x - 9) = ( x - 5) + 9
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
7x - 10 = 12 ADD 10 TO BOTH SIDES.
7x=12+10 combine the right side terms.
7x=22 divide by 7
x=22/7=3.14 (pi) ans.
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3x = 9x - 15 subtract 9x from both sides.
3x-9x=-15 combine the left side terms.
-6x=-15 divide by -6
x=-15/-6 reduce
x=5/2=2.5 ans.
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4( x - 9) = ( x - 5) + 9 expand left side.
4x-36=x-5+9 subtract x & add 36.
4x-x=-5+9+36 combine terms.
3x=40
x=40/3=13.33 ans.
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