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kompoz [17]
3 years ago
15

3(1-3x)=2(-4x+7) solve

Mathematics
2 answers:
Rudiy273 years ago
8 0

Simplify the left side.

Tap for more steps...

3−9x=2(−4x+7)

Simplify the right side.

Tap for more steps...

3−9x=−8x+14

Move all terms containing x

to the left side of the equation.

Tap for more steps...

3−x=14

Move all terms not containing x

to the right side of the equation.

Tap for more steps...

−x=11

Multiply each term in x=−11

by −1

Tap for more steps...

x=−11

Hope this helps!

ivann1987 [24]3 years ago
6 0

First you use the distributive property. So, 3 times 1 and 3 times -xx = 2 times -4x and 2 times 7. This becomes 3-9x = -8x+14.  Subtract 3 from both sides and add 8x to both sides and you get -x=11, so x=-11

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Hellpppp me please this test is my whole life and if I don’t pass I’m ruined for life so please HELPPPP MEEEEE
Elanso [62]

Answer:

expanded form: 5 * 5 * 5

value: 125

Step-by-step explanation:

3 0
2 years ago
Which expression is a factor of 9x^2-4x+1 ( ps ^2 is an exponent)
erastovalidia [21]

Answer:

The discriminant b2−4ac < 0, the equation has no real number solutions, it has complex solutions

Step-by-step explanation:

9x² - 4x + 1 = 0     ax² + bx + c = 0

The discriminant: b² - 4ac = (-4)² - 4*9*1 = 16 - 36 = -20

b2−4ac < 0, the equation has no real number solutions, it has complex solutions

3 0
3 years ago
Jeremiah plans on building a 5 meter long garden walkway that is paved with square stones that measure " $ meter on each side. T
larisa86 [58]

Complete question :

Jeremiah plans on building a 5 meter long garden walkway that is paved with square stones that measure " 5/6 meter on each side. There will be no spaces between the stones. How many stones will be needed to complete the garden walkway?

Answer:

12

Step-by-step explanation:

Given that:

Length of square block to be used = 5/6 meters

Length of garden. Walkway = 5 m

Since length of walkway is the same on both sides, then the Total length = 5m + 5m = 10 meters

Number of square stones required :

Total length of walkway / side length of stones to be used

= 10 meters ÷ (5/6) meters

= 10 * 6/5

= 60 / 5

= 12 stones

8 0
2 years ago
Can someone please help me with this
solmaris [256]

Step-by-step explanation:

sum of all angles = 360

7x-4 = 360

7x= 364

x = 52

angle j = 150

angle k = 62

angle m = 100

8 0
2 years ago
Y=x+1<br> 3x-2y=5<br><br><br> solve using substitution
miskamm [114]
Answer: (4, 5) 
Work:
Substitute the y in the second problem with y=x+1
3x-2(x+1)=5
3x-2x+1=5
x=4
Now solve for y
y=4+1
y=5
6 0
2 years ago
Read 2 more answers
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