Question

If 3w +6=21 find the value of w

Answer 1

Answer:

$3w + 6 = 21 \\ 3w = 15 \\ w = 5$

Answer 2

Hey there!

$\mathsf{3w + 6 = 21}$

SUBTRACT 6 to BOTH SIDES

$\mathsf{3w + 6 - 6 = 21 - 6}$

CANCEL out: 6 - 6 because that gives you 0

KEEP: 21 - 6 because it helps you solve for w

$\mathsf{21 - 6 = \boxed{\bf 15}}$

NEW EQUATION: $\mathsf{3w = 15}$

DIVIDE 3 to BOTH SIDES

$\mathsf{\dfrac{3w}{3}=\dfrac{15}{3}}$

CANCEL out: $\mathsf{\dfrac{3}{3}}$ because that gives you 1

KEEP: $\mathsf{\dfrac{15}{3}}$ because that gives you the value of w

NEW EQUATION: $\mathsf{\dfrac{15}{3}=w}$

$\mathsf{\dfrac{15}{3}=\boxed{\bf 5}}$

$\boxed{\boxed{\large\textsf{Therefore, your answer: \huge \bf w = 5}}}\huge\checkmark$

$\large\text{Good luck on your assignment and enjoy your day!}$

~$\frak{Amphitrite1040:)}$