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5 votes
What is the solution to this equation 10x-15x+5=-45+20

2 Answers

5 votes

Answer:

x = 6

Explanation:

10x - 15x + 5 = -45 + 20

→ Simplify the 10x - 15x

-5x + 5 = -45 + 20

→ Simplify the -45 + 20

-5x + 5 = -25

→ Minus 5 both sides from to isolate -5x

-5x = -30

→ Divide by -5 from both sides from to isolate x

x = 6

User Lukasz Szozda
by
4.1k points
7 votes

Answer:

6

Explanation:


10x - 15x + 5 = - 45 + 20

Collect like terms


- 5x + 5 = - 45 + 20

Calculate the sum


- 5x + 5 = - 25

Move constant to RHS and change its sign


- 5x = - 25 - 5

Calculate


- 5x = - 30

Divide both sides of the equation by -5


( - 5x)/( - 5) = ( - 30)/( - 5)

Calculate


x = 6

Hope this helps...

Best regards!!

User NicolasR
by
4.0k points