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zubka84 [21]
3 years ago
14

6x-8 = -4x+7 solve for x

Mathematics
2 answers:
Fantom [35]3 years ago
5 0

Answer:

so look

Step-by-step explanation:

6x=7+8

2 Simplify  7+87+8  to  1515.

6x=156x=15

3 Divide both sides by 66.

x=\frac{15}{6}x=

​6

​

​15

​​

4 Simplify  \frac{15}{6}

​6

​

​15

​​   to  \frac{5}{2}

​2

​

​5

​​ .

x=\frac{5}{2}x=

​2

​

​5

​​

Done

Decimal Form: 2.5

Nutka1998 [239]3 years ago
5 0

Answer:

x = 1.5

Step-by-step explanation:

6x - 8 = -4x +7

    + 8          +8

6x     =  -4x +15

+4x      +4x  

10x   =           15

10x/10 =      15/10

x        = 1.5

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1/7 ÷ 4/9 = _ × _=_​
pogonyaev
1/7 x 9/4 = 9/28

This process to solving division involving fractions is called “keep, change, flip”
8 0
3 years ago
Choose Yes or No to tell whether the expressions are equivalent. 1. 4(5c + 3) and 9c + 7 yes or no 2. 10f – 10 and 2(8f – 5) yes
Juli2301 [7.4K]

Answer:

1) No

2) No

3)Yes

4)No

Step-by-step explanation:

Distributive property: a(b + c) =a*b + a*c

1) 4(5c + 3) = (4*5c) + 4*3

                  = 20c + 12

NO

2) 2(8f - 5) = (2*8f) - (2*5)

                 = 16f - 10

NO

3) 3(4g + 7) = (3*4g) + (3*7)

                  = 12g + 21

YES

4) 6(4j - 6) =(6 * 4j) - (6*6)

                = 24j - 36

NO

5 0
3 years ago
Evaluate: 4+8 divided by 2x (6-3)
Volgvan

Answer:

Step-by-step explanation:

(4+8)/(2x(6-3)) = 12/(2x(6-3))  = 12/6x = 2/x

3 0
3 years ago
What does f(3) means ?
Butoxors [25]

F(x)=x^2+x+5  

then  

F(3) would be the function evaluated at x=3, or 17.

anytime you see F(3) it is just whatever formula you are looking at evaluated when the variable is equal to 3.

5 0
3 years ago
Can someone please help me extra points
Maslowich

Answer:

4) m: 1.25   b: 6         Equation: y= 1.25x + 6

5) m: 20      b: 10     Equation: y= 40x + 10

6) m: -2       b: 0       Equation: y= -2x + 0

7) m: 1/5      b: 1       Equation: y= 1/5x + 1

8) -8.7 = 1.3x + 0

I really hope this helps!

3 0
3 years ago
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