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OLga [1]
3 years ago
7

What is 21+x=70 what is X?

Mathematics
2 answers:
Maurinko [17]3 years ago
6 0

\huge\text{Hey there!}

\large\textsf{21 + x = 70}

\large\textsf{x + 21 = 70}

\large\text{SUBTRACT 21 to BOTH SIDES}

\large\textsf{x + 21 - 21 = 70 - 21}

\large\text{CANCEL out: 21 - 21  because that gives you 0}

\large\text{KEEP: 70 - 21 because that helps solve for the x-value}

\large\textsf{x = 70 - 21}

\large\textsf{\bf x = 49}

\boxed{\boxed{\huge\text{Therefore, your answer is: \textsf{x = 49}}}}\huge\checkmark

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

~\frak{Amphitrite1040:)}

dangina [55]3 years ago
3 0

Answer:

<em>Simplifying</em>

Simplifying

21 + x = 70

Solving

21 + x = 70

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-21' to each side of the equation.

21 + -21 + x = 70 + -21

Combine like terms: 21 + -21 = 0

0 + x = 70 + -21

x = 70 + -21

Combine like terms: 70 + -21 = 49

x = 49

Simplifying

x = 49

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