Find the solution of each system of equations by elimination.
1. x+y=7
2. 3x - 4y =7
3. x+y=6
4. x-y=3
5. 3x+ 4y=1
6. 2x-3y=2
please paki answer po at pakibigay po yung solution kung paano na kuha salamat po aantayin ko po ang iyong sagot pasahan na po kasi namin bukas.
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Answer:
1.)Let's solve for x.
x+y=7
Step 1: Add -y to both sides.
x+y+−y=7+−y
x=−y+7
Answer:
x=−y+7
2.)Let's solve for x.
3x−4y=7
Step 1: Add 4y to both sides.
3x−4y+4y=7+4y
3x=4y+7
Step 2: Divide both sides by 3.
3x 4y+2
—— = ———
3 3
4 7
x= ——y+ ——
3 3
Answer:
4 7
x= ——y+ ——
3 3
3.)Let's solve for x.
x+y=6
Step 1: Add -y to both sides.
x+y+−y=6+−y
x=−y+6
Answer:
x=−y+6
4.)Let's solve for x.
x−y=3
Step 1: Add y to both sides.
x−y+y=3+y
x=y+3
Answer:
x=y+3
5.)Let's solve for x.
3x+4y=1
Step 1: Add -4y to both sides.
3x+4y+−4y=1+−4y
3x=−4y+1
Step 2: Divide both sides by 3.
3x -4y+1
—— = ————
3 3
-4 1
x= ——y+ ——
3 3
Answer:
-4 1
x= ——y+ ——
3 3
6..)
Let's solve for x.
2x2−3y=2
Step 1: Add 3y to both sides.
2x2−3y+3y=2+3y
2x2=3y+2
Step 2: Divide both sides by 2.
2x² 3y+2
—— = ————
2 2
3
x2 = —y+1
2
Step 3: Take square root
3 3
x = ——y+1 or x = - ——y+1
2 2
Answer:
3 3
x = ——y+1 or x = - ——y+1
2 2
Step-by-step explanation:
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