2(3d+7)=5+5d. 6d+14=5+5d 6d+9=5d 9=-1d d=-9 I think that's correct. If it is, ur welcome.
No. It's 18 + 6d
3c-d
9d-19=6d+2 ... add 19 to both sides and subtract 6d from both sides... 9d-6d=2+19 3d=21 d=21/3 d=7
3c - 4d = 6d + 4c Subtract 4c from both sides: -c - 4d = 6d Add 4d to both sides: -c = 10d or c = - 10d
2(3d+7)=5+5d. 6d+14=5+5d 6d+9=5d 9=-1d d=-9 I think that's correct. If it is, ur welcome.
To simplify 8d -5 +7d -9d, combine the numbers with the ds and don't forget the -5. 8d + 7d - 9d = 6d Simplified, it is 6d - 5.
To simplify the expression 5d + 2(3d), you first distribute the 2 to the terms inside the parentheses, which gives you 5d + 6d. Combining like terms, you add the coefficients of the d-terms together to get 11d. Therefore, the simplified expression is 11d.
They can be simplified to 10d
3d+7=6d+5 The first thing would be to subtract 3d from both sides. You will end up with 7=6d-3d+5. Then subtract 5 from both sides. Now you have 7-5=6d-3d. Now you have the numbers with like terms on either side of the equation. 7-5=2 and you can subtract 3d from 6d because both 6 & 3 have d as their variable. So 6d-3d=3d. Now the equation is 2=3d. Now you have to divide both sides by 3. (Since 3d is also expressed as 3 x d, we need to do the opposite of multiplication which is division, in order to get the variable d by itself) So now you have 2/3=d, or d is two thirds.
No. It's 18 + 6d
3c-d
9d-19=6d+2 ... add 19 to both sides and subtract 6d from both sides... 9d-6d=2+19 3d=21 d=21/3 d=7
3c - 4d = 6d + 4c Subtract 4c from both sides: -c - 4d = 6d Add 4d to both sides: -c = 10d or c = - 10d
It is an equation and the value of d is 2
Collect like terms: 11c+6d-5c-8d = 6c-2d
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