4x + 9 = 2x - 1
4x - 2x = -1 - 9
2x = -10
x = -10/2
x = -5 <===
This system of linear equation has infinite solutions because they are really the same equation.
12x + 3y = 21
3y = -12x + 21 Divide through by 3:-
y = -4x + 7 <-------- which is the first equation
<h3>I'll teach you how to solve (2w - 3)*(4w - 7)</h3>
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Apply FOIL method:
2w*4w+2w(-7)+(-3)*4w+(-3)(-7)
Apply minus/plus rules:
2*4ww-2*7w-3*4w+3*7
Simplify:
8w^2-26w+21
Your Answer Is 8w^2-26w+21
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Answer:
14/8 or 14:8
Step-by-step explanation:
blue:brown=14:8