Saturday, April 16, 2016

College Algebra, Chapter 1, 1.1, Section 1.1, Problem 30

The equation 2x1x+2=45 is either linear or equivalent to a linear equation. Solve the equation

2x1x+2=45Multiply both sides by 5(x+2)5\cancel(x+2)[2x1\cancelx+2=4\cancel5]\cancel5(x+2)Simplify5(2x1)=4(x+2)Apply Distributive property10x5=4x+8Combine like terms10x4x=8+5Simplify6x=13Divide both sides by 6\cancel6x\cancel6=136Simplifyx=136

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