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How do you solve #4x+7=3x+18#?

Answer 1

I would collect all the #x# on the left and all the numbers on the right but remember to change their signs when you move them across the equal sign: #4x-3x=-7+18# Notice the change of signs of #3x# and #7#; You get adding the #x#s and the numbers: #x=11# which is the result of your equation!

Try to substitute #x=11# in your original equation to check that is the right result!

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Answer 2

Isaiah Anthony

To solve the equation 4x + 7 = 3x + 18, you would first isolate the variable, x, by subtracting 3x from both sides of the equation. Then, you would subtract 7 from both sides to further isolate x. Finally, you would divide by the coefficient of x to solve for x.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.