ISEE Lower Level Math : How to find the solution to an equation

Study concepts, example questions & explanations for ISEE Lower Level Math

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Example Questions

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Example Question #1 :How To Find The Solution To An Equation

Determine the value of\dpi{100} x.

\dpi{100} \small 3x+4=19

Possible Answers:

\dpi{100} 2

\dpi{100} 5

\dpi{100} 3

\dpi{100} 4

Correct answer:

\dpi{100} 5

Explanation:

Find which answer makes the equation true.

\dpi{100} 3(5)+4=19

Example Question #1 :How To Find The Solution To An Equation

Simplify

\dpi{100} 2x+10-5+6x

Possible Answers:

\dpi{100} 2x+11

\dpi{100} 2x-11

\dpi{100} 8x-5

\dpi{100} 8x+5

Correct answer:

\dpi{100} 8x+5

Explanation:

Combine the\dpi{100} 2xand the\dpi{100} 6xto get\dpi{100} 8x

\dpi{100} 10-5=5

\dpi{100} 8x+5

Example Question #1 :Equations

Determine the value of

Possible Answers:

Correct answer:

Explanation:

Example Question #1 :How To Find The Solution To An Equation

Simplify

Possible Answers:

Correct answer:

Explanation:

Combine like terms:

So

Example Question #1 :Equations

Solve for:

Possible Answers:

Correct answer:

Explanation:

First subtract 12 from both sides

Now divide both sides by 3.

Example Question #6 :How To Find The Solution To An Equation

Solve for:

Possible Answers:

Correct answer:

Explanation:

First addto both sides

Now divide both sides by

Example Question #7 :How To Find The Solution To An Equation

Determine the value of

Possible Answers:

Correct answer:

Explanation:

Example Question #8 :How To Find The Solution To An Equation

Solve for.

Possible Answers:

Correct answer:

Explanation:

Replace the variableso the equation is correct.

Example Question #1 :How To Find The Solution To An Equation

Solve for.

Possible Answers:

Correct answer:

Explanation:

Find the anwer forwhich makes the equation true:

Example Question #10 :How To Find The Solution To An Equation

Evaluate the expression if.

Possible Answers:

Correct answer:

Explanation:

To solve, insert 7 for each.

When solving this part of the equation, remember the order of operations (PEMDAS) and square the number in the parentheses BEFORE multiplying by 2.

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