Step-by-step explanation:
Answer:
x = 8
Step-by-step explanation:
Since you know that the line is 180 degrees in total, and there is a right angle, then you know . . .
180 = 90 + 40 + 6x + 2
Subtract 90 + 40 + 2 on both sides
48 = 6x
Divide by 6 on both sides.
x = 8
You have your answer.
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Answer:
The first stpe in solving this system of equations is finding either X or Y in terms of the other variable. Ex: x = 8 - y or y = 8 - x
Step-by-step explanation:
When faced with a system of equations problem, you need to find one variable at a time. To do this, you need to eliminate one of the variables from one of the equations. I used x + y = 8 because that was simplier to find one of the variables from. From there, you can substitute that in for the variabel in the secone equation.
3x - 2y = -6
3x - 2(8 - x) = -6
3x - 16 + 2x = -6
5x - 16 = -6
5x = 10
x = 2
Than you can use that and plug it back into one of the original equations to find the other variable.
x + y = 8
2 + y = 8
y = 6
Answer:
x= -9
Step-by-step explanation:
Sin is equal to cos. x-3=2x+6 and you solve.
