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-5n+6n-7=0
We add all the numbers together, and all the variables
n-7=0
We move all terms containing n to the left, all other terms to the right
n=7
| 70/5=x/25 | | 70/5=x/25 | | 70/5=x/25 | | 5m^2-4m+6=0 | | 5m^2-4m+6=0 | | 50=5c-450 | | -2(7b+5)=-130 | | -2(7b+5)=-130 | | -2(7b+5)=-130 | | -2(7b+5)=-130 | | -2(7b+5)=-130 | | 4.9g+4=1.9g+10 | | -2(7b+5)=-130 | | 4.9g+4=1.9g+10 | | 4.9g+4=1.9g+10 | | 4.9g+4=1.9g+10 | | 4.9g+4=1.9g+10 | | -2(7b+5)b=-130 | | -4(-4a-5)=148 | | -4(-4a-5)=148 | | m³-6m²-11m-6=0 | | 50=5c-450 | | 50=5c-450 | | 50=5c-450 | | 14x+x=45 | | 14x+x=45 | | 50=5(c-90) | | k/10+75=82 | | k/10+75=82 | | k/10+75=82 | | 20+4u=64 | | 100+(n-2)=149 |