Yfirlitsæfingar

𝑥+16=31,𝑥=15$x+16=31,x=15$

𝑤−8=5,𝑤=3$w-8=5,w=3$

−9⁢𝑛=45,𝑛=54$\mathrm{-9}n=45,n=54$

4⁢𝑎=72,𝑎=18$4a=72,a=18$

𝑥+7=19$x+7=19$

𝑦+2=−6$y+2=\mathrm{-6}$

𝑎+13=53$a+\frac{1}{3}=\frac{5}{3}$

𝑛+3.6=5.1$n+3.6=5.1$

𝑢−7=10$u-7=10$

𝑥−9=−4$x-9=\mathrm{-4}$

𝑐−311=911$c-\frac{3}{11}=\frac{9}{11}$

𝑝−4.8=14$p-4.8=14$

𝑛−12=32$n-12=32$

𝑦+16=−9$y+16=\mathrm{-9}$

𝑓+23=4$f+\frac{2}{3}=4$

𝑑−3.9=8.2$d-3.9=8.2$

𝑦+8−15=−3$y+8-15=\mathrm{-3}$

7⁢𝑥+10−6⁢𝑥+3=5$7x+10-6x+3=5$

6⁢(𝑛−1)−5⁢𝑛=−14$6(n-1)-5n=\mathrm{-14}$

8⁢(3⁢𝑝+5)−23⁢(𝑝−1)=35$8(3p+5)-23(p-1)=35$

Summa $\mathrm{-6}$ og $m$ er $25.$

Fjórum minna en $n$ er $13.$

Dóttir Rochelle er $11$ ára. Sonur hennar er $3$ árum yngri. Hvað er sonurinn gamall?

Tan vegur $146$ pund. Minh vegur $15$ pundum meira en Tan. Hvað vegur Minh mikið?

Peter greiddi $\text{\$9.75}$ fyrir að fara í bíó, sem var $\text{\$46.25}$ minna en hann greiddi fyrir að fara á tónleika. Hvað greiddi hann fyrir tónleikana?

Elissa þénaði $\text{\$152.84}$ í þessari viku, sem var $\text{\$21.65}$ meira en hún þénaði í síðustu viku. Hvað þénaði hún í síðustu viku?

8⁢𝑥=72$8x=72$

13⁢𝑎=−65$13a=\mathrm{-65}$

0.25⁢𝑝=5.25$0.25p=5.25$

−𝑦=4$-y=4$

𝑛6=18$\frac{n}{6}=18$

𝑦−10=30$\frac{y}{\mathrm{-10}}=30$

36=34𝑥$36=\frac{3}{4}x$

58𝑢=1516$\frac{5}{8}u=\frac{15}{16}$

−18⁢𝑚=−72$\mathrm{-18}m=\mathrm{-72}$

𝑐9=36$\frac{c}{9}=36$

0.45⁢𝑥=6.75$0.45x=6.75$

1112=23𝑦$\frac{11}{12}=\frac{2}{3}y$

5⁢𝑟−3⁢𝑟+9⁢𝑟=35−2$5r-3r+9r=35-2$

24⁢𝑥+8⁢𝑥−11⁢𝑥=−7⁢−14$24x+8x-11x=\mathrm{-7}\mathrm{-14}$

8⁢𝑝+7=47$8p+7=47$

10⁢𝑤−5=65$10w-5=65$

3⁢𝑥+19=−47$3x+19=\mathrm{-47}$

32=−4−9⁢𝑛$32=\mathrm{-4}-9n$

7⁢𝑦=6⁢𝑦−13$7y=6y-13$

5⁢𝑎+21=2⁢𝑎$5a+21=2a$

𝑘=−6⁢𝑘−35$k=\mathrm{-6}k-35$

4⁢𝑥−38=3⁢𝑥$4x-\frac{3}{8}=3x$

12⁢𝑥−9=3⁢𝑥+45$12x-9=3x+45$

5⁢𝑛−20=−7⁢𝑛−80$5n-20=\mathrm{-7}n-80$

4⁢𝑢+16=−19−𝑢$4u+16=\mathrm{-19}-u$

58𝑐−4=38𝑐+4$\frac{5}{8}c-4=\frac{3}{8}c+4$

6⁢(𝑥+6)=24$6(x+6)=24$

9⁢(2⁢𝑝−5)=72$9(2p-5)=72$

−(𝑠+4)=18$-(s+4)=18$

8+3⁢(𝑛−9)=17$8+3(n-9)=17$

23−3⁢(𝑦−7)=8$23-3(y-7)=8$

13⁢(6⁢𝑚+21)=𝑚−7$\frac{1}{3}(6m+21)=m-7$

8⁢(𝑟−2)=6⁢(𝑟+10)$8(r-2)=6(r+10)$

5+7⁢(2−5⁢𝑥)=2⁢(9⁢𝑥+1)−(13⁢𝑥−57)$5+7(2-5x)=2(9x+1)-(13x-57)$

4⁢(3.5⁢𝑦+0.25)=365$4(3.5y+0.25)=365$

0.25⁢(𝑞−8)=0.1⁢(𝑞+7)$0.25(q-8)=0.1(q+7)$

25𝑛−110=710$\frac{2}{5}n-\frac{1}{10}=\frac{7}{10}$

13𝑥+15𝑥=8$\frac{1}{3}x+\frac{1}{5}x=8$

34𝑎−13=12𝑎+56$\frac{3}{4}a-\frac{1}{3}=\frac{1}{2}a+\frac{5}{6}$

12⁢(𝑘+3)=13⁢(𝑘+16)$\frac{1}{2}(k+3)=\frac{1}{3}(k+16)$

0.8⁢𝑥−0.3=0.7⁢𝑥+0.2$0.8x-0.3=0.7x+0.2$

0.36⁢𝑢+2.55=0.41⁢𝑢+6.8$0.36u+2.55=0.41u+6.8$

0.6⁢𝑝−1.9=0.78⁢𝑝+1.7$0.6p-1.9=0.78p+1.7$

0.10⁢𝑑+0.05⁢(𝑑−4)=2.05$0.10d+0.05(d-4)=2.05$