# Aktiviteter 2

### 2.1)

Regn ut og trekk sammen.

a)
$2x+x+3y$
b)
$x+2y-3x$
c)
$10a-5b+2b-3a$
d)
$z+5a-6z+2z$
e)
$2y+3x+4x-3y$

### 2.2)

Regn ut og trekk sammen.

a)
$\begin{array}{ccc}\hfill & x+y+2x+5x\hfill & \hfill \\ \hfill & \phantom{\rule{2em}{0ex}}+2y-6x+3y-5y\hfill \end{array}$
b)
$\begin{array}{ccc}\hfill & 4a-2b+a\hfill & \hfill \\ \hfill & \phantom{\rule{2em}{0ex}}-5b-7a+12b\hfill \end{array}$
c)
$\begin{array}{ccc}\hfill & 16a-2c+15b+8a\hfill & \hfill \\ \hfill & \phantom{\rule{2em}{0ex}}-7b+9c-a+21c\hfill \end{array}$
d)
$\begin{array}{ccc}\hfill & 16x+7y-5z+y\hfill & \hfill \\ \hfill & \phantom{\rule{2em}{0ex}}-12x-6y+4z+13x\hfill \end{array}$

### 2.3)

Regn ut og trekk sammen.

a)
$1-4x-2y+7x+5+y$
b)
$9a-5a+2-a$
c)
$6a-3-a+2$
d)
$4x-3y-4+2x-3$
e)
$a+3+5a-5$
f)
$3a-4+2b+a$
g)
$3c+7h+5c-4c+7h$
h)
$8p+9p-5t-5p+8t$
i)
$k+k+2k+4r-3k-3r$

a)
$1-4x-2y+7x+5+y$
b)
$9a-5a+2-a$
c)
$6a-3-a+2$
d)
$4x-3y-4+2x-3$
e)
$a+3+5a-5$
f)
$3a-4+2b+a$
g)
$3c+7h+5c-4c+7h$
h)
$8p+9p-5t-5p+8t$
i)
$k+k+2k+4r-3k-3r$

Du kan finne fasit her.

Vil du vite mer?Registrer degDet er gratis!
Forrige oppslag
Pluss og minus (Ulike bokstaver)
Neste oppslag
Pluss og minus av potenser