4 years ago

5(6x - 1) - 10x + 5 = 4(x + 10) - 4x

Mathematics

1 answer:

Dmitry [639]4 years ago

3 0

Answer:

x=2

Step-by-step explanation:

5(6x-1)-10x+5=4(x+10)-4x

simplify both sides

30x-5-10x+5=4x+40-4x

Simplify even further

20x=40

x=2

You might be interested in

a television regularly cost $180 but is on sale for 40% off there is a 5% sales tax on the sales price how much does the televis

Orlov [11]

Answer:

$102.60

Step-by-step explanation:

i am pretty sure this is correct

8 0

3 years ago

Solve each problem by using the quadratic formula. Write solutions in simplest radical form. 2x2 + 2x – 2 = 0

Deffense [45]

$2x^2+2x-2=0 \ \ \ \ \ |\div 2 \\
x^2+x-1=0 \\ \\
a=1 \\ b=1 \\ c=-1 \\
b^2-4ac=1^2-4 \times 1 \times (-1)=1+4=5 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-1 \pm \sqrt{5}}{2 \times 1}=-\frac{1 \pm \sqrt{5}}{2} \\
\boxed{x=-\frac{1+\sqrt{5}}{2} \hbox{ or } x=-\frac{1-\sqrt{5}}{2}}$