You can
put this solution on YOUR website!1. Clear fractions or decimals, solve, and check: 1/2+4m=3m-5/2
Steps:
a. move the terms with variables to the left, other terms on the right.
b. perform appropriate mathematical operation
Work shown:
now perform math operations
Can you simplify
?
Yes, but I'll let you finish it.
.
2. Combine like terms, and write in descending order: 3/4x^3+4x^2-x^3+7
Steps:
a. here you may perform a math operation only on those terms that have the variable raised to the same power, so:
Problem:
Now place them in descending order:
Since any number divided by itself equals 1, we will change the coefficient of -x^3 to -(4/4)x^3. The reason I picked 4/4 is so we can do the mathematical operation with the first term. So, we now have:
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This is as far as we can go. :)
You can
put this solution on YOUR website!1) well you want to get m on the same side first of all.
So I would take 3m away from each side of the equation. REMEMBER FOR EQUATIONS PROVIDED YOU DO THE SAME ACTION TO BOTH SIDES IT REMAINS BALANCED LIKE SCALES
1/2+(4m-3m)=(3m-3m)-5/2
1/2+m=-5/2
Take 1/2 from both sides. We have the same denominator (the lower numbers on the fraction) so we can concentrate on the numerators (top numbers)
(1/2-1/2)+m=-5/2-1/2
m= -6/2 (-5-1 = -6)
m= -3
Check answer by subsituting back in.
gives us -11.5 on both sides.
Check through and see if you can follow my working.
Then have a go at 2) on your own and see what you come up with.
