4 years ago

A=4 B=5 C=10 what is 4a-7

1 answer:

3 0

What you need to do is plug in the values of the variables, 4(4)-7, because a=4.
Next, you solve; 4(4)-7= 16-7 = 9.
In conclusion, the expression equals 9.

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What is the answer to x^2-11=25 please

Westkost [7]

Hey there!

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$\large\textsf{ADD 11 to BOTH SIDES}$

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$\large\textsf{CANCEL out: -11 + 11 because that gives you 0}$

$\large\textsf{KEEP: 25 + 11 because that helps solve for the x-value}$

$\mathsf{25 + 11 = \bf 36}$

$\large\textsf{NEW EQUATION: }\mathsf{x^2=36}$

$\large\textsf{Take the square root of the number (36)}$

$\mathsf{x = \pm \sqrt{36}}$

$\mathsf{\pm = \boxed{\bf plus-or-minus}}$

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$\large\textsf{or}$

$\mathsf{x = \sqrt{36} = \bf 6}$

$\boxed{\boxed{\huge\textsf{Answer: \bf x = 6 or x = -6}}}\huge\checkmark$

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

~ $\frak{Amphitrite1040:)}$

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