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25.02.2020 •
Mathematics
Simplify the expression: 7 + -7x + -8 - 9x + 5
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Ответ:
To simplify the expression 7 + -7x + -8 - 9x + 5 we can combine like terms.
= (7 - 8 + 5) + (-7x - 9x)
= 4 - 16x
Put the equation in standard form. (ax^2 + bx + c)
-16x + 4
Best of Luck!
Ответ:
x = 1/4
Step-by-step explanation:
Step 1: Combine like terms
7 + -7x + -8 - 9x + 5
7 - 7x - 8 - 9x + 5
4 - 16x
Step 2: Solve for x
4 - 16x - 4 = 0 - 4
-16x/-16 = -4/-16
x = 4/16
x = 1/4
x = 1/4
Ответ:
-2x+8=x-1
add 2x to both sides
8=3x-1
add 1
9=3x
divide 3
3=x
sub
y=x-1
y=3-1
y=2
(x,y)
(3,2)