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Sonja [21]
3 years ago
15

Elimination method?special cases?1) 2x+3y=92) x+5y=8

Social Studies
1 answer:
xxTIMURxx [149]3 years ago
3 0
Solve for: <span>xy</span>Let's solve for x.<span><span>x+<span>5y</span></span>=8</span>Step 1: Add -5y to both sides.<span><span><span>x+<span>5y</span></span>+<span>−<span>5y</span></span></span>=<span>8+<span>−<span>5y</span></span></span></span><span>x=<span><span>−<span>5y</span></span>+8</span></span>Answer:x=<span><span>−<span>5y</span></span>+<span>8</span></span>1. 
2.
Let's solve for x.<span><span><span>2x</span>+<span>3y</span></span>=9</span>Step 1: Add -3y to both sides.<span><span><span><span>2x</span>+<span>3y</span></span>+<span>−<span>3y</span></span></span>=<span>9+<span>−<span>3y</span></span></span></span><span><span>2x</span>=<span><span>−<span>3y</span></span>+9</span></span>Step 2: Divide both sides by 2.<span><span><span>2x</span>2</span>=<span><span><span>−<span>3y</span></span>+9</span>2</span></span><span>x=<span><span><span><span>−3</span>2</span>y</span>+<span>92</span></span></span>Answer:<span>x=<span><span><span><span>−3</span>2</span>y</span>+<span>9<span>2</span></span></span></span>
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Answer:

yellow = 4

green = 2

blue = 3

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Explanation:

y = yellow marbles

r = red marbles

b = blue marbles

g = green marbles

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y = 1/3 (12) = 4

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<em>Combine like terms</em>

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<em>Subtract 6</em>

r + b = 6

<em>Because r = b, plug in b for r</em>

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