c because its so simple trust!!
Answer:
Is this in Deltamath?
Step-by-step explanation:
Answer:
x = 21
Step-by-step explanation:
We know that a triangle equals to 180 degrees.
Combine like terms. (x + 3x) and (-4 + 100)
x - 4 + 3x + 100 = 180
Subtract 96 on both sides.
4x + 96 = 180
-96 -96
Divide 4 on both sides.
4x = 84
--- -----
4 4
And you get a solution of 21.
x = 21
<u>Check:</u>
Substitute 21 into x.
Add/Subtract from left to right.
21 - 4 + 3(21) + 100 = 180
17 + 63 + 100 = 180
80 + 100 = 180
180 = 180
(179.3)/(61.5) *10 time both sides by 10 to get rid of the decimal
1793/615
615*2= 1230 615 goes two times into 1793 before exceeding
1793-1230=563 remainder which is less than 615 hence will give a decimal when divided by 615
563/615= 0.9
2+0.9 = 2.9 is the answer
for a longer decimal you can easily use a calculator
4-(6x + 5) = 7 - 2(3x + 4)
Distribute: 4 - 6x - 5 = 7 - 6x - 8
Combine like terms (constants): -1 - 6x = -1 - 6x
Add 1 to both sides: -6x = -6x
Divide both sides by -6: x = x
Hope this helps!
