What is the value of x in the equation 1.8-3.7x=-4.2x+0.3

Question

Fernando

Mathematics

25 July, 11:00

What is the value of x in the equation 1.8-3.7x=-4.2x+0.3

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Answers (1)

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Libby King · Answer 1

We are to solve this for x: 1.8-3.7x=-4.2x+0.3

Combine like terms. First, add 4.2x to both sides. This results in 1.8+0.5x = 0.3, and then 0.5x = 0.3-1.8.

Next, 0.05x = - 1.5, or 5x = - 150, and x = - 30.

Must check this result by substitution of - 30 for x in the original equation.

Is 1.8-3.7 (-30) = - 4.2 (-30) + 0.3 true or false?