I tried to solve but could not develop the left part of the equation
60860
Combinatorial proof of $\sum_{i = 0}^{n} \binom{i}{r - 1} = \binom{n + 1}{r}$ and then use result to find a formula for $1^2 + 2^2 + \ldots + n^2$
815
How can I add left aligned text to an equation?
76716
Solve an equation in $\mathbb{R}^+$
92370
missing $ inserted error for equation
1483
Left/Right across multi-line equation
97356
equations that are too large to fit on one line
32122
Find the coefficient of the term $x^2$ in $\left(x+\frac 2x\right)^{4}$
17452
Is differentiating on both sides of an equation allowed?
128425
How to obtain numerical solutions of a two-variable equation?
15201
Unable to solve equation for a variable by any method
154798
Issue with NSolve
18510
How to solve the following equation numerically?
50206
Why should you never divide both sides by a variable when solving an equation?
88373
Left-aligned text inside an equation
53042
Find solutions to $\varphi\left(n\right)=2^{32}$
121330
Equation is not centered
67310
The multi-part identifier could not be bound