Whats The Following Sloution 15x-3=9x+1

Mathematics

2 answers:

Flauer [41]3 years ago

5 0

answer to the problem is x=2/3

Katarina [22]3 years ago

3 0

Answer by JKismyhusbandbae:

$\mathrm{Add\:}3\mathrm{\:to\:both\:sides}\\15x-3+3=9x+1+3\\Simplify\\15x=9x+4\\\mathrm{Subtract\:}9x\mathrm{\:from\:both\:sides}\\15x-9x=9x+4-9x\\\mathrm{Simplify}\\6x=4\\\mathrm{Divide\:both\:sides\:by\:}6\\\frac{6x}{6}=\frac{4}{6}\\\mathrm{Simplify}\\x=\frac{2}{3}$

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3 years ago

Is x = -12 a solution of x^2 +10x+25=49?

Tresset [83]

Answer:

Yes

Step-by-step explanation:

${x}^{2} + 10x + 25 = 49 \\ {x}^{2} + 10x + 25 - 49 = 0 \\ {x}^{2} + 10x - 24 = 0 \\ (x + 12)(x -2 ) = 0 \\ \\ x + 12 = 0 \\ x = - 12 \\ \\ \\ x - 2 = 0 \\x = 2$