Question

How do you solve 3x-15=7x-10

Answer 1

I think it’s -1.25???? Idk I’m too lazy to check my math

Explanation:

You take the 3x and subtract it from both sides. You now have -15 = 4x -10

Then you do +10 to both sides. Now you have -5 = 4x

Divide each side by 4 and you have -1.25 = x

Now check your math.

3 • -1.25 -15 = 7 • -1.25 -10

Answer 2

Explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form: x=-45

x

=

−

5

4

Decimal Form:x=-1.25

x

=

−

1.25

Mixed Number Form:x=-14

x

=

−

1

1

4