3 years ago

Solve for x: HELPP PLEASE WILL MARK BRAINLIEST :))))

Mathematics

2 answers:

balu736 [363]3 years ago

3 0

Answer: X = 20

Step-by-step explanation:

7x - 99 = 2x + 1 --Take 2x from both sides

-2x -2x

5x - 99 = 1 -- add 99 to both

+99 +99

5x = 100 --Divide by 5

÷5 ÷5

x = 20

ladessa [460]3 years ago

3 0

Answer: x=20

Step-by-step explanation:

You might be interested in

A cuboid with a volume of 924cm^3 has dimensions 4cm, (x+1)cm and (x+11). Show clearly that x^2+12x-220=0 solve the equation by

garik1379 [7]

Answer:

$x^2+12x-220=0$ -- Proved

$x = 10\ \ \ x = -22$

Step-by-step explanation:

Given

$Volume = 924cm^3$

$Dimension: 4cm; (x+1)cm; (x+11)cm$

Required

Show that $x^2+12x-220=0$

The volume is calculated as:

$4 * (x + 1) * (x + 11) = 924$

Open the brackets

$(4x + 4) * (x + 11) = 924$

$4x^2 + 44x + 4x + 44 = 924$

$4x^2 + 48x+ 44 = 924$

Collect Like Terms

$4x^2 + 48x+ 44 - 924=0$

$4x^2 + 48x -880=0$

Divide through by 4

$\frac{4x^2}{4} + \frac{48x}{4} -\frac{880}{4}=0$

$x^2+12x-220=0$

Solving further:

Expand the expression

$x^2 + 22x - 10x - 220 = 0$

Factorize:

$x(x + 22) - 10(x + 22) = 0$

$(x - 10)(x + 22) = 0$

Split:

$x - 10 = 0;\ \ \ x + 22 = 0$

$x = 10\ \ \ x = -22$

5 0

2 years ago

Use the Pythagorean theorem to find the distance on the coordinate plane. What is the distance between the two points?

olga55 [171]

I hope this helps you

5 0

3 years ago

Read 2 more answers

A band is receiving $650.00 for playing at a festival. Their manager takes 15% of the money received for each show, and the band

Dafna1 [17]

650-15%= 552.50 (they pay the manager 97.50) which leaves 552.50 profit 10% goes to ST(55.25 to the ST) which is 497.25 left for the band

5 0

3 years ago

Read 2 more answers

Can somebody plz help answer this word problem using equations thx :3 (only if u done this before) lol :)

ycow [4]

Answer:

one num = 6

another = 24

Step-by-step explanation:

One number = x

Another = 4x

Difference = 18

4x - x = 18

3x = 18 ; x = 18/3 = 6

8 0

2 years ago

Can you please help me !!

larisa86 [58]

Equation = 2x + 7

Y-intercept = (0,7)

8 0

3 years ago