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pantera1 [17]
3 years ago
11

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

Mathematics
2 answers:
aleksley [76]3 years ago
7 0

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!

Alex3 years ago
6 0

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

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