Question

Solve for x: 5x+3+8x-4=90

Answer 1

Answer:

$x = 7$

Step-by-step explanation:

We can solve the equation $5x+3+8x-4=90$ by isolating the variable x on one side. To do this, we must simplify the equation.

$5x+3+8x-4=90$

Combine like terms:

$13x - 1 = 90$

Add 1 to both sides:

$13x = 91$

Divide both sides by 13:

$x = 7$

Hope this helped!

Answer 2

Answer:

x = 7

Step-by-step exxplanation:

5x + 3 + 8x - 4 = 90

5x + 8x = 90 - 3 + 4

13x = 91

x = 91/13

x = 7

probe:

5*7 + 3 + 8*7 - 4 = 90

35 + 3 + 56 - 4 = 90