7-1=6
6+6=12
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It's about 34 and a third
yes you can
b + 9 = 21 Take the + 9 across the other side of the equals sign. a plus becomes a minus. b = 21 - 9 so... b = 12. This can be checked by setting b to 12 in the first equation b + 9 = 21 12 + 9 = 21 which is correct.
yes. Remember your trip from home to work equals the distance from work to home. You commute like that every day.
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3-(-9) Considering a negative plus a negative equals a positive your equation can be rewritten as 3+9 Which equals 12
There are 2 unknowns
It's about 34 and a third
7n + 1 = 6n + 8 7n=6n+7 (minus 1 from each side) n=7 (7n-6n equals n, you are left with n=7)
3x-8=7x+10x 3x-8=17x -8 = 14x -4=7x -4/7
yes you can
cheater == 2[x-3]+3[x-2]=18 2x-6+3x-6=18 5x-12=18 5x=30 x=30/5=6
It might be possible to work this in your head. Your 98 is 100 minus 2. This means 98 plus 98 is 100 plus 100 minus 2 minus 2. That's 200 minus 4 which gives 196 as the answer.
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It equals 1,861. This is how you do the work. 2,005 -189 _____ 1,861
The expression: 12+15h-14h+4 can be simplified to 16+h by combining like terms