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Type a math problem
AC
log
ln
(
)
7
8
9
τ
π
4
5
6
≤
≥
%
θ
1
2
3
<
>
x
i
0
.
y
Solve for r
r=-\frac{3}{7}\approx -0.428571429
Steps for Solving Linear Equation
\frac{r-3}{4}=2r
Multiply both sides of the equation by 4.
Multiply both sides of the equation by .
r-3=8r
Subtract 8r from both sides.
Subtract from both sides.
r-3-8r=0
Combine r and -8r to get -7r.
Combine and to get .
-7r-3=0
Add 3 to both sides. Anything plus zero gives itself.
Add to both sides. Anything plus zero gives itself.
-7r=3
Divide both sides by -7.
Divide both sides by .
r=\frac{3}{-7}
Fraction \frac{3}{-7}\approx -0.428571429 can be rewritten as -\frac{3}{7}\approx -0.428571429 by extracting the negative sign.
Fraction can be rewritten as by extracting the negative sign.
r=-\frac{3}{7}
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r-3=8r
Multiply both sides of the equation by 4.
r-3-8r=0
Subtract 8r from both sides.
-7r-3=0
Combine r and -8r to get -7r.
-7r=3
Add 3 to both sides. Anything plus zero gives itself.
r=\frac{3}{-7}
Divide both sides by -7.
r=-\frac{3}{7}
Fraction \frac{3}{-7}\approx -0.428571429 can be rewritten as -\frac{3}{7}\approx -0.428571429 by extracting the negative sign.
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