Question

5x²+10=30 find the variable​

Answer 1

Answer:

First, to solve the given linear equation, 5x = 25, for the variable x, divide both sides of the equation by 5 in order to isolate the variable x on the left side, thus solving the equation for x as follows:

5x = 25 (Given)

(5x)/5 = 25/5

(5/5)x = 25/5

(1)x = 5

x = 5

CHECK (ALWAYS PERFORM THIS STEP, AND DO SO BACK IN THE ORIGINAL, GIVEN EQUATION!):

5x = 25

5(5) = 25

25 = 25

Therefore, x = 5 is indeed the solution to the given equation.

Finally, to evaluate the given algebraic expression, 5x², since x = 5, then simply substitute 5 for x into the expression, then use the order of operations as follows:

5x² = 5(5²)

= 5(25)

= 125

Answer 2

Answer:

If this is correct

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