Find the value of b: -4b + x = 7 8b + 2x = -9
1 answer:
Answer:
b = -23/16
Step-by-step explanation:
The variable x can be eliminated from the system by multiplying the first equation by -2 and adding that to the second equation.
-2(-4b +x) +(8b +2x) = -2(7) +(-9)
16b = -23 . . . . . collect terms
b = -23/16 . . . . divide by the coefficient of b
The value of b is -23/16 = -1 7/16 .
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Answer:
x = -6
Step-by-step explanation:
Let the number be x
<u>Condition: </u>
=> 10-3x = x+22
<u><em>Let's Solve it: </em></u>
=> -3x-x = 22-10
=> -2x = 12
<em>Dividing both sides by -2</em>
=> x = -6
To find the percent, we do:
Only x-intercept because if you want to know about x-intercepts so y will be zero (y=0)
Answer: 5x+8
Step-by-step explanation: You have to combine like terms.
3x+2x=5x
5+3=8
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