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8 votes
8 votes
Y = 3.2
Solve the following system of equations by substitution.
3x
-9x + 3y = 1

User Evvon
by
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2 Answers

9 votes
9 votes
3x-9x+3(3.2)=1

3x-9x+9.6=1
-9.6. -9.6
-6x=-8.6
X=-8.6/-6=1.433333333
User Rahsha
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3.2k points
20 votes
20 votes


\huge\text{Hey there!}


\huge\text{3x - 9x + 3y = 1}\\\huge\text{\boxed{\rightarrow} -6x + 3y = 1}\\\huge\text{\boxed{\rightarrow} -6x + 3(3.2) = 1}\\\huge\text{\boxed{\rightarrow} -6x + 9.6 = 1}


\huge\textsf{SUBTRACT \underline{\underline{9.6}} to BOTH SIDES}\\\huge\text{-6x + 9.6 - 9.6 = 1 - 96}\\\\\\\huge\textsf{DIVIDE \underline{\underline{-6}} to BOTH SIDES}\\\\\huge\boxed{\frac{-6\mathsf{x}}{-6}= (-8.6)/(-6)}


\huge\textsf{SIMPLIFY ABOVE \& YOU HAVE YOUR}\\\huge\textsf{RESULT OF THE X-VALUE}\\\\\\\boxed{\huge\boxed{\huge\textsf{x = \bf 1.433333 or } \mathsf{x = \bf (8.6)/(6)}}}\huge\checkmark


\huge\text{Good luck on your assignment \& enjoy your day!}\\\\\\\\\boxed{\huge\boxed{\frak{Amphitrite1040:)}}}

User Hzxu
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2.5k points