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

Step-by-step explanation:
We can solve the equation
by isolating the variable x on one side. To do this, we must simplify the equation.

Combine like terms:

Add 1 to both sides:

Divide both sides by 13:

Hope this helped!
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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Step-by-step explanation:
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Step-by-step explanation:
Answer:
x=1
y=-1/2
Step-by-step explanation:
x+2y=0....(1)
10y=-5.....(2)
From (2) we can find y.
y=-5/10
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Use that in (1)
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