A+bx=z get x by its self

Mathematics

2 answers:

Free_Kalibri [48]2 years ago

6 0

Answer: x=(z-a)/b

Step-by-step explanation:

First subtract a from both sides to begin isolating x on its side of the equation. This gives you bx=z-a. Next, divide b from both sides to finish isolating x. This gives you x=(z-a)/b

son4ous [18]2 years ago

6 0

Answer:

x = $\frac{z}{b} -\frac{a}{b}$

Step-by-step explanation:

a + b( $\frac{z}{b} -\frac{a}{b}$ ) = z

a + z - a = z

a - a + z = z

z = z

This is true.

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Please Solve this, it would be extremely helpful for me.

Sidana [21]

Answer:

Step-by-step explanation:

1) ΔCPD & ΔEPF

∠CPD = ∠EPF { Vertically opposite angles}

∠CDP = ∠PFE {CD║EF, FD is transversal, Alternate interior angles are equal}

ΔCPD ≈ΔEPF {AA criteria for similarity }

$\frac{DC}{EF} =\frac{PC}{EP}\\\\\\\frac{27}{EF}=\frac{15}{7.5}\\\\$

Cross multiply

EF * 15 = 27 * 7.5

$EF =\frac{27*7.5}{15}\\\\$

EF = 27 * 0.5

EF = 13.5 cm

ii) EF // AB, so Triangles ACB & ECF are similar triangles

$\frac{AB}{EF}=\frac{AC}{EC}\\\\\frac{22.5}{13.5}=\frac{AC}{22.5}$

$AC= \frac{22.5*22.5}{13.5}\\\\AC=37.5 cm$

AC = 37.5 cm

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3 years ago

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LekaFEV [45]

I believe AC=3 inches

8 0

3 years ago

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WITCHER [35]

It says that the value of a box above two boxes is found by adding the expressions in the two boxes. I filled in the boxes. The top box is 13x + 30, or option B.