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3 years ago

How do you solve 5+y=7

Mathematics

2 answers:

PolarNik [594]3 years ago

7 0

5 + y = 7 <em>subtract 5 from both sides</em>

5 - 5 + y = 7 - 5

ss7ja [257]3 years ago

6 0

In order to solve 5 + y = 7 you have to find the value of (y). In this case you could reverse do problem and do 7 - 5 to get the value of y. 7 - 5 = 2, which means y is equal to 2.

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3 years ago

Solve the equation -5(s+30)=-17

zzz [600]

Answer:

s = -133/5 = -26.600 ⬇️

Step-by-step explanation:

Step by step solution :

Step 1 :

Equation at the end of step 1 :

(0 - 5 • (s + 30)) - -17 = 0

Step 2 :

Step 3 :

Pulling out like terms :

3.1 Pull out like factors :

-5s - 133 = -1 • (5s + 133)

Equation at the end of step 3 :

-5s - 133 = 0

Step 4 :

Solving a Single Variable Equation :

4.1 Solve : -5s-133 = 0

Add 133 to both sides of the equation :

-5s = 133

Multiply both sides of the equation by (-1) : 5s = -133

Divide both sides of the equation by 5:

s = -133/5 = -26.600

One solution was found :

s = -133/5 = -26.600

7 0

3 years ago

3(t-7) =6. Solve for the and show steps

Taya2010 [7]

$3(t -7) = 6 \\ 3(t) + 3(-7)\\ 3(-7) = -21 \\ 3t = 3t \\ 3t - 21 = 6 \\Add21: 3t - 21 + 21 = 6 +21 \\ 3t = 21: Divide3 \\ \frac{3t}{3} cancel = \frac{27}{3}keep \\ t = 9$
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$8(h - 9) = 8 \\ 8h - 9 = 9 \\ 8h = 8h \\ 8(-9) = -72\\ 8h + (-72) = \\ 8h - 72 = 8 \\ Add72: 8h - 72 + 72 \\ = 8 + 72 \\ divide8 : \frac{8h}{8}cancel = \frac{80}{8} (keep) \\ h = 10$
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$9 + 2(z - 2) = 15 \\ 9+2(z)+ 2(-2)= 15 \\ 2(-2) = -4 \\ 9 +2z = ? \\ 9 +2z+4 = 15\\ Subtract5: 2z + 5 -5 \\ = 15 -5 \\ Divide2: 2z = 10 \\ \frac{2z}{2}cancel = \frac{10}{2} = 5 \\ z = 5$
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good luck on your assignment and enjoy your day

~ $MeIsKaitlyn:)$

4 0

4 years ago