Question

-5x+10=21 ?? Help

Answer 1

subtract 10 on each side

-5x=11

divide by negative 5 on both sides

x= 11/-5

Answer 2

Reorder the terms:
10 + -5x = 21

Solve
10 + -5x = 21

Solve for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-10' to each side of the equation.
10 + -10 + -5x = 21 + -10

Combine like terms: 10 + -10 = 0
0 + -5x = 21 + -10
-5x = 21 + -10

Combine like terms: 21 + -10 = 11
-5x = 11

Divide each side by '-5'.
x = -2.2

Simplify
x = -2.2

Answer 3

Hope that helps!

Cheers! :-)