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3 years ago

5x + (–7) = –8x + 6

Mathematics

2 answers:

ra1l [238]3 years ago

8 0

Answer:

x=1

Step-by-step explanation:

13x=13

x=1

All you do it get rid of the lowest x value, and put the non x values to the right. Divide by the coefficient, and you'll get 1.

babymother [125]3 years ago

8 0

Answer:

x=1

Step-by-step explanation:

5x+(-7)= -8x+6

5x= -8x +6+7

5x= -8x+13

+8x

5x+8x=13

13x=13

x=1

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4 years ago

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4 0

3 years ago

Lisa has 12 more stickers than John, and together they have 60 stickers. What is the ratio of the number of Lisa’s stickers to t

Harman [31]

Answer:

The ratio of the number of Lisa’s stickers to the number of John’s stickers is 3/2

Step-by-step explanation:

Step 1

Let

x ----> the number of stickers that Lisa has

y ----> the number of stickers that John has

we know that

$x+y=60$ ------> equation A

$x=y+12$ ----> equation B

Solve the system by substitution

Substitute equation B in equation A and solve for y

$(y+12)+y=60\\ 2y=60-12\\ 2y=48\\ y=24$

Find the value of x

$x=y+12$ -----> $x=24+12=36$

therefore

Lisa has 36 stickers and John has 24 stickers

Step 2

Find the ratio of the number of Lisa’s stickers to the number of John’s stickers

x/y

substitute

$\frac{36}{24}=\frac{3}{2}$

5 0

3 years ago

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Aleks [24]

Answer:

Step-by-step explanation:

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3 years ago

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sleet_krkn [62]

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4 years ago