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ra1l [238]
3 years ago
5

Solve the equation below. Show all steps for full points. 7r + 13 = 7 + 6r

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
7 0

Answer:

r = - 6

Step-by-step explanation:

Given

7r + 13 = 7 + 6r ( subtract 6r from both sides )

r + 13 = 7 ( subtract 13 from both sides )

r = - 6

ioda3 years ago
4 0

<em><u>Answer:</u></em>

<em><u></u></em>\boxed{r=-6}

<em><u>Step-by-step explanation:</u></em>

All~you~have~to~do~is~collect ~the ~constants~ on ~one ~side ~of ~the~ =~ and the~variables~(including~terms~with~r)~ on ~the~ other~ side.~ Then, manipulate~it,~ so~ that~ you~ only~ have~ a ~single ~r~on~ its~ own~ on~ one~ side and ~everything~ else~ on~ the ~other.

<em><u>Applying the method :</u></em>

→ Subtract ~6r~from~ both ~sides:<em><u /></em>

<em><u /></em>6r-6r+7~~=~~13+7r-6r

         0+7~~=~~13+r<em><u /></em>

<em><u /></em>

→ Subtract~13~from~both~sides:

7-13~~=~~13-13+r

     -6~~=~~0+r

          r=-6

<em><u /></em>

<em><u /></em>

<em><u>The short cut approach for add or subtract is:</u></em>

<em><u /></em>Move~ something~ to~ the~ other ~side ~of~ the~ ``=" ~and ~change~its~ sign.<em><u /></em>

<em><u /></em>

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Two times a number x minus six times another number y is negative six.
Pie

Answer:

2x-6y=6, 2x+5y=18

Step-by-step explanation:

Translating the phrase into an equation, we get:

2x-6y=6

And:

-2x+5y=18

So the system of equations would be:

2x-6y=6, 2x+5y=18

If you want to put it into slope-intercept form, you can simplify both equations:

2x-6y=6\\6y=2x-6\\y=\frac{1}{3}x-3

2x+5y=18\\5y=-2x+18\\y=-\frac{2}{5}x+\frac{18}{5}

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2 years ago
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Answer:

the answer is

Step-by-step explanation:

x=1/2y+5---i

4x+3y=-20 ----ii

putting value of x in eqn Ii

4×(1/2×y+5)+3y=-20

2y+5+3y=-20

5y+5=-20

5y=-20-5

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y=-25/5

y=-5

putting value in eqn I

x=1/2×-5+5

x=-5/2+5

x=5/2

4 0
2 years ago
Multiply. 27.4 x 0.001 =
dem82 [27]

Answer:

0.0274

Step-by-step explanation:

Starting with 27.4, move the decimal point 3 digits to the left:

0.0274

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Step-by-step explanation:

Here are more ways you can name it:

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Hope it helps!

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