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Answer for 5x+3x=420
Step 1: Simplify both sides of the equation.
5x+3x=420
(5x+3x)=420(Combine Like Terms)
8x=420
8x=420
Step 2: Divide both sides by 8.
[tex]\frac{8x}{8}[/tex] = [tex]\frac{420}{8}[/tex]
x = [tex]\frac{105}{2}[/tex]
Answer for 12x+9=1080
Step 1: Subtract 9 from both sides.
12x+9−9=1080−9
12x=1071
Step 2: Divide both sides by 12.
[tex]\frac{12x}{12}[/tex] = [tex]\frac{1071}{12}[/tex]
x = [tex]\frac{357}{4}[/tex]
