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spin [16.1K]
3 years ago
11

Which equation is equivalent to 15-7x=14

Mathematics
2 answers:
lana66690 [7]3 years ago
4 0
The equation that is equivalent to 15-7x=14 is x=7
Tju [1.3M]3 years ago
3 0

\huge\text{Hey there!}

\large\text{15 - 7x = 14}

\large\text{-7x + 15 = 14}

\underline{\large\text{SUBTRACT 15 to BOTH SIDES}}

\large\text{-7x + 15 - 15 = 14 - 15}

\underline{\underline{\large\text{CANCEL out: 15 - 15 because that gives you 0}}}

\underline{\underline{\large\text{KEEP: 14 - 15 because that helps solve for the x-value}}}

\large\text{14 - 15 = \bf -1}

\underline{\underline{\underline{\large\text{NEW EQUATION: -7x = -1}}}}

\underline{\large\text{DIVIDE -7 to BOTH SIDES}}

\mathsf{\dfrac{-7\mathsf{x}}{-7}=\dfrac{-1}{-7}}

\underline{\underline{\large\text{CANCEL out: } \dfrac{-7}{-7} \large\text{ because that gives you 1}}}

\underline{\underline{\large\text{KEEP: }\dfrac{-1}{-7}\large\text{ because helps you get the x-value}}}

\mathsf{x = \dfrac{-1}{-7}}

\mathsf{x = \dfrac{-1\div-1}{-7\div-1}}

\mathsf{x =\bf  \dfrac{1}{7}}

\boxed{\boxed{\large\text{Therefore, your answer is: \bf x = }\bf  \dfrac{1}{7}}}\huge\checkmark

\huge\text{Good luck on your assignment \& enjoy your day!}

~\frak{Amphitrite1040:)}

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