Multiple Choice Question:x2+2x-48=0 is a(n)A.) EquationB.) Expression

Mathematics

1 answer:

Nimfa-mama [501]2 years ago

5 0

Answer:

This is an equation.

Step-by-step explanation:

An expression would mean that there is no equal sign, but since there is, that makes it an equation.

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-2(3y - 6) + 4(5y - 8) = 92

Whitepunk [10]

Answer:

y = 8

Step-by-step explanation:

$-2(3y - 6) + 4(5y - 8) = 92\\\\\mathrm{Expand\:}-2\left(3y-6\right)+4\left(5y-8\right):\quad 14y-20\\14y-20=92\\\\\mathrm{Add\:}20\mathrm{\:to\:both\:sides}\\14y-20+20=92+20\\\\Simplify\\14y=112\\\\\mathrm{Divide\:both\:sides\:by\:}14\\\frac{14y}{14}=\frac{112}{14}\\\\Simplify\\y= 8$